Clean up ARMv7 architecture Kconfig

There was a misuse of bool that would cause the dcache policy to not be
set up correctly, but instead present options "y" and "n" in the Kconfig
menu.

Also, TINY_BOOTBLOCK was removed a while ago, everything is
TINY_BOOTBLOCK now. Hence remove the option.

Change-Id: I5c28ac828955c69614c7bdaf106f79db51e68723
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2101
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/arch/armv7/Kconfig

@@ -34,7 +34,6 @@ config BOOTBLOCK_SOURCE
 config UPDATE_IMAGE
 	bool "Update existing coreboot.rom image"
 	default n
-	depends on TINY_BOOTBLOCK
 	help
 	  If this option is enabled, no new coreboot.rom file
 	  is created. Instead it is expected that there already
@@ -47,9 +46,11 @@ config BOOTBLOCK_SOC_INIT
 # FIXME: Should cache policy be set on a per-CPU basis?
 # FIXME(dhendrix): Stefan sayz to make a smart decision and not prompt the user.
 config ARM_DCACHE_POLICY_WRITEBACK
-	bool y
+	bool
+	default y
 
 config ARM_DCACHE_POLICY_WRITETHROUGH
-	bool n
+	bool
+	default n
 
 endmenu