Remove non-ascii & unprintable characters

These non-ascii & unprintable characters aren't needed.

Change-Id: I129f729f66d6a692de729d76971f7deb7a19c254
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/15977
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/google/cosmos/chromeos.c

@@ -1,4 +1,4 @@
-/*
+/*
  * This file is part of the coreboot project.
  *
  * Copyright 2014 Google Inc.

src/mainboard/google/parrot/ec.h

@@ -49,8 +49,8 @@
  * AC power plug-out  C8h
  * Modem Ring In  CAh
  * PME signal active  CEh
- * Acer Hotkey Function – Make event D5h
- * Acer Hotkey Function – Break event D6h
+ * Acer Hotkey Function - Make event D5h
+ * Acer Hotkey Function - Break event D6h
  */
 
 #ifndef __ACPI__

src/mainboard/google/purin/chromeos.c

@@ -1,4 +1,4 @@
-/*
+/*
  * This file is part of the coreboot project.
  *
  * Copyright 2015 Google Inc.

src/mainboard/google/stout/ec.c

@@ -48,10 +48,10 @@ void stout_ec_init(void)
 	 * Set USB Power off in S3 (enabled in S3 path if requested in gnvs)
 	 * Bit0 of 0x0D/Bit0 of 0x26
 	 * 0/0 All USB port off
-	 * 1/0 USB on, all USB port didn’t support wake up
+	 * 1/0 USB on, all USB port didn't support wake up
 	 * 0/1 USB on, yellow port support wake up charge, but may not support
 	 *             charge smart phone.
-	 * 1/1 USB on, yellow port in AUTO mode and didn’t support wake up system.
+	 * 1/1 USB on, yellow port in AUTO mode and didn't support wake up system.
 	 */
 	ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) & 0xE);
 	ec_write(EC_USB_S3_EN, ec_read(EC_USB_S3_EN) & 0xE);

src/mainboard/google/stout/mainboard_smi.c

@@ -58,10 +58,10 @@ void mainboard_smi_sleep(u8 slp_typ)
 	 * Tell the EC to Enable USB power for S3 if requested.
 	 * Bit0 of 0x0D/Bit0 of 0x26
 	 * 0/0 All USB port off
-	 * 1/0 USB on, all USB port didn’t support wake up
+	 * 1/0 USB on, all USB port didn't support wake up
 	 * 0/1 USB on, yellow port support wake up charge, but may not support
 	 *             charge smart phone.
-	 * 1/1 USB on, yellow port in AUTO mode and didn’t support wake up system.
+	 * 1/1 USB on, yellow port in AUTO mode and didn't support wake up system.
 	 */
 	if (smm_get_gnvs()->s3u0 != 0 || smm_get_gnvs()->s3u1 != 0) {
 		ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) | 0x00);

src/mainboard/google/veyron/chromeos.c

@@ -1,4 +1,4 @@
-/*
+/*
  * This file is part of the coreboot project.
  *
  * Copyright 2014 Rockchip Inc.

src/mainboard/google/veyron_rialto/chromeos.c

@@ -1,4 +1,4 @@
-/*
+/*
  * This file is part of the coreboot project.
  *
  * Copyright 2014 Rockchip Inc.