[PATCH] Fix initrd Kconfig dependencies

From: "Jim Gifford" <maillist@jg555.com>

Prevent initrd from being built if ram device is built as a module.

drivers/block/Kconfig

@@ -321,6 +321,7 @@ config BLK_DEV_RAM_SIZE
 
 config BLK_DEV_INITRD
 	bool "Initial RAM disk (initrd) support"
+	depends on BLK_DEV_RAM && BLK_DEV_RAM!=m
 	help
 	  The initial RAM disk is a RAM disk that is loaded by the boot loader
 	  (loadlin or lilo) and that is mounted as root before the normal boot