[PATCH] sparc64: fix compile with strict mm types

compile fix on sparc64 - missed pgd_val() bites now that we have
STRICT_MM_TYPECHECKS set.  Incidentally, shifting _by_ unsigned long is
useless - type of result is determined by the type of first argument... 
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/sparc64/kernel/binfmt_aout32.c

@@ -335,7 +335,7 @@ static int load_aout32_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	if (!(orig_thr_flags & _TIF_32BIT)) {
 		unsigned long pgd_cache;
 
-		pgd_cache = ((unsigned long)current->mm->pgd[0])<<11UL;
+		pgd_cache = ((unsigned long)pgd_val(current->mm->pgd[0]))<<11;
 		__asm__ __volatile__("stxa\t%0, [%1] %2\n\t"
 				     "membar #Sync"
 				     : /* no outputs */