sh: kexec and kdump depend on SUPERH32.

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig

@@ -666,7 +666,7 @@ source kernel/Kconfig.hz
 
 config KEXEC
 	bool "kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	depends on SUPERH32 && EXPERIMENTAL
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -683,7 +683,7 @@ config KEXEC
 
 config CRASH_DUMP
 	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	depends on SUPERH32 && EXPERIMENTAL
 	help
 	  Generate crash dump after being started by kexec.
 	  This should be normally only set in special crash dump kernels