ARMv7/Exynos: Fix memory location assumptions

This patch cleans out a lot of unused variables in the
ARM Kconfig files and introduces CONFIG_RAMSTAGE_BASE
which is similar to CONFIG_RAMBASE on x86.
This gets rid of the hard coded assumption that on ARM
coreboot is always executed at the lowest DRAM address.
But in fact, this might not be true because we might want
coreboot to live at the end of RAM, or in SRAM

Change-Id: I03e992645f9eb730e39a521aa21f702959311f74
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/168645
Reviewed-by: David Hendrix <dhendrix@chromium.org>
Tested-by: David Hendrix <dhendrix@chromium.org>
(cherry picked from commit 15b87892eb)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6634
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/emulation/qemu-armv7/Kconfig

@@ -33,7 +33,7 @@ config MAINBOARD_DIR
 
 config MAINBOARD_PART_NUMBER
 	string
-	default "QEMU ARMV7"
+	default "QEMU ARMv7"
 
 config MAX_CPUS
 	int
@@ -43,6 +43,10 @@ config MAINBOARD_VENDOR
 	string
 	default "ARM Ltd."
 
+config SYS_SDRAM_BASE
+	hex "SDRAM base address"
+	default 0x01000000
+
 config DRAM_SIZE_MB
 	int
 	default 1024
@@ -62,17 +66,13 @@ config BOOTBLOCK_BASE
 	hex
 	default 0x00010000
 
-config ID_SECTION_BASE
-	hex
-	default 0x0001f000
-
 config ROMSTAGE_BASE
 	hex
 	default 0x00020000
 
-config ROMSTAGE_SIZE
+config RAMSTAGE_BASE
 	hex
-	default 0x20000
+	default SYS_SDRAM_BASE
 
 config BOOTBLOCK_ROM_OFFSET
 	hex
@@ -98,8 +98,4 @@ config STACK_SIZE
 	hex
 	default 0x0003ff00
 
-config SYS_SDRAM_BASE
-	hex "SDRAM base address"
-	default 0x01000000
-
 endif #  BOARD_EMULATION_QEMU_ARMV7