[PATCH] uml: prevent MODE_SKAS=n and MODE_TT=n

If MODE_TT=n, MODE_SKAS must be y.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/Kconfig

@@ -83,7 +83,7 @@ config KERNEL_HALF_GIGS
         of physical memory.
 
 config MODE_SKAS
-	bool "Separate Kernel Address Space support"
+	bool "Separate Kernel Address Space support" if MODE_TT
 	default y
 	help
 	This option controls whether skas (separate kernel address space)