sh: Initial ELF FDPIC support.

This adds initial support for ELF FDPIC on MMU-less SH, as per version
0.2 of the ABI definition at:

	http://www.codesourcery.com/public/docs/sh-fdpic/sh-fdpic-abi.txt

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h
index eb0358c..fdcb93b 100644
--- a/include/asm-sh/mmu.h
+++ b/include/asm-sh/mmu.h
@@ -12,6 +12,10 @@
 	struct vm_list_struct	*vmlist;
 	unsigned long		end_brk;
 #endif
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+	unsigned long		exec_fdpic_loadmap;
+	unsigned long		interp_fdpic_loadmap;
+#endif
 } mm_context_t;
 
 /*