Use more secure HTTPS URLs for coreboot sites

The coreboot sites support HTTPS, and requests over HTTP with SSL are
also redirected. So use the more secure URLs, which also saves a
request most of the times, as nothing needs to be redirected.

Run the command below to replace all occurences.

```
$ git grep -l -E 'http://(www.|review.|)coreboot.org'
| xargs sed -i 's,http://\(.*\)coreboot.org,https://\1coreboot.org,g'
```

Change-Id: If53f8b66f1ac72fb1a38fa392b26eade9963c369
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://review.coreboot.org/20034
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

payloads/external/FILO/Kconfig.name

@@ -5,4 +5,4 @@ config PAYLOAD_FILO
 	  with a FILO payload. If you don't know what this is
 	  about, just leave it enabled.
 
-	  See http://coreboot.org/Payloads for more information.
+	  See https://coreboot.org/Payloads for more information.

payloads/external/GRUB2/Kconfig.name

@@ -5,4 +5,4 @@ config PAYLOAD_GRUB2
 	  with a GRUB2 payload. If you don't know what this is
 	  about, just leave it enabled.
 
-	  See http://coreboot.org/Payloads for more information.
+	  See https://coreboot.org/Payloads for more information.

payloads/external/SeaBIOS/Kconfig.name

@@ -6,4 +6,4 @@ config PAYLOAD_SEABIOS
 	  with a SeaBIOS payload. If you don't know what this is
 	  about, just leave it enabled.
 
-	  See http://coreboot.org/Payloads for more information.
+	  See https://coreboot.org/Payloads for more information.

payloads/external/U-Boot/Kconfig.name

@@ -5,6 +5,6 @@ config PAYLOAD_UBOOT
 	  Select this option if you want to build a coreboot image
 	  with a U-Boot payload.
 
-	  See http://coreboot.org/Payloads and U-Boot's documentation
+	  See https://coreboot.org/Payloads and U-Boot's documentation
 	  at http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.x86
 	  for more information.

payloads/external/depthcharge/Kconfig.name

@@ -5,4 +5,4 @@ config PAYLOAD_DEPTHCHARGE
 	  Select this option if you want to build a coreboot image
 	  with a depthcharge payload.
 
-	  See http://coreboot.org/Payloads for more information.
+	  See https://coreboot.org/Payloads for more information.

payloads/external/tianocore/Kconfig.name

@@ -5,4 +5,4 @@ config PAYLOAD_TIANOCORE
 	  with a Tiano Core payload. If you don't know what this is
 	  about, just leave it enabled.
 
-	  See http://coreboot.org/Payloads for more information.
+	  See https://coreboot.org/Payloads for more information.

payloads/libpayload/README

@@ -8,13 +8,13 @@ code, and provides common C library symbols such as malloc() and printf().
 
 Note: This is _not_ a standard library for use with an operating system,
 rather it's only useful for coreboot payload development!
-See http://coreboot.org for details on coreboot.
+See https://coreboot.org for details on coreboot.
 
 
 Installation
 ------------
 
- $ git clone http://review.coreboot.org/p/coreboot.git
+ $ git clone https://review.coreboot.org/p/coreboot.git
 
  $ cd coreboot/payloads/libpayload
 
@@ -52,10 +52,10 @@ Please see the sample/ directory for details.
 Website and Mailing List
 ------------------------
 
-The main website is http://www.coreboot.org/Libpayload.
+The main website is https://www.coreboot.org/Libpayload.
 
 For additional information, patches, and discussions, please join the
-coreboot mailing list at http://coreboot.org/Mailinglist, where most
+coreboot mailing list at https://coreboot.org/Mailinglist, where most
 libpayload developers are subscribed.
 
 

payloads/libpayload/arch/x86/exec.S

@@ -30,7 +30,7 @@
 /* calling syntax:  i386_do_exec(long addr, int argc, char **argv, int *ret) */
 
 /* This implements the payload API detailed here:
- * http://www.coreboot.org/Payload_API
+ * https://www.coreboot.org/Payload_API
  */
 
 .align 4

payloads/libpayload/arch/x86/head.S

@@ -74,7 +74,7 @@ _init:
 	movl %ebx, loader_ebx
 
 	/* Copy argv[] and argc as demanded by the Payload API,
-	 * see http://www.coreboot.org/Payload_API and exec.S.
+	 * see https://www.coreboot.org/Payload_API and exec.S.
 	 */
 	cmpl $CB_MAGIC_VALUE, CB_MAGIC(%esp)
 	jne 1f