sh: Switch to asm-generic versions for identical headers.

This switches over mman/param/parport/serial/socket/ucontext.h.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/ucontext.h b/arch/sh/include/asm/ucontext.h
index 202ef1d..9bc07b9 100644
--- a/arch/sh/include/asm/ucontext.h
+++ b/arch/sh/include/asm/ucontext.h
@@ -1,12 +1 @@
-#ifndef __ASM_SH_UCONTEXT_H
-#define __ASM_SH_UCONTEXT_H
-
-struct ucontext {
-	unsigned long	  uc_flags;
-	struct ucontext  *uc_link;
-	stack_t		  uc_stack;
-	struct sigcontext uc_mcontext;
-	sigset_t	  uc_sigmask;	/* mask last for extensibility */
-};
-
-#endif /* __ASM_SH_UCONTEXT_H */
+#include <asm-generic/ucontext.h>