sh: Add sh to the CC_OPTIMIZE_FOR_SIZE dependencies.

Presently we only use this with CONFIG_EXPERIMENTAL, but it is
something that can be supported commonly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/init/Kconfig b/init/Kconfig
index e205682..1bf3afa 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -340,7 +340,7 @@
 config CC_OPTIMIZE_FOR_SIZE
 	bool "Optimize for size (Look out for broken compilers!)"
 	default y
-	depends on ARM || H8300 || EXPERIMENTAL
+	depends on ARM || H8300 || SUPERH || EXPERIMENTAL
 	help
 	  Enabling this option will pass "-Os" instead of "-O2" to gcc
 	  resulting in a smaller kernel.