armv7: nuke global_data.h and remove some references to gd struct

This begins to remove references to global data which u-boot used.
There are still many commented out references to gd-> and bd-> which
we'll fix once we're happy with the replacements.

Change-Id: Ie1b40a997e28a118f8f3ad96a2f9a2462d32fbe3
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2210
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/cpu/samsung/exynos5-common/spl_boot.c

@@ -55,9 +55,6 @@
 
 #include <arch/io.h>
 
-/* FIXME(dhendrix): clean out u-boot global data stuff */
-//DECLARE_GLOBAL_DATA_PTR;
-
 #define OM_STAT		(0x1f << 1)
 
 /**
@@ -344,15 +341,6 @@ void board_init_f(void)
 	hlt();
 }
 
-/* Place Holders */
-void board_init_r(gd_t *id, ulong dest_addr)
-{
-	/* Function attribute is no-return */
-	/* This Function never executes */
-	while (1)
-		;
-}
-
 //void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) {}
 
 #if 0