ARMv7: De-uboot-ify Exynos5250 code

When starting the Exynos5250 port, a lot of unneeded u-boot code
was imported. This is an attempt to get rid of a lot of unneeded
code before the port is used as a basis for further ARM ports.

There is a lot more that can be done, including cleaning up the
5250's Kconfig file.

Change-Id: I2d88676c436eea4b21bcb62f40018af9fabb3016
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3642
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/emulation/qemu-armv7/romstage.c

@@ -14,18 +14,16 @@
  */
 
 #include <cbfs.h>
-#include <common.h>
 #include <console/console.h>
 #include <arch/stages.h>
 
 void main(void)
 {
         void *entry;
+
 	console_init();
-	printk(BIOS_INFO, "hello from romstage\n");
 
 	entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/coreboot_ram");
-	printk(BIOS_INFO, "entry is 0x%p, leaving romstage.\n", entry);
 
 	stage_exit(entry);
 }