[SPARC]: Fix dot-symbol exporting for good.

From: Al Viro <viro@ZenIV.linux.org.uk>

Instead of playing all of these hand-coded assembler aliasing games,
just translate symbol names in the name space ".sym" to "_Sym" at
module load time.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/umul.S b/arch/sparc/lib/umul.S
index a784720..f0e5b20 100644
--- a/arch/sparc/lib/umul.S
+++ b/arch/sparc/lib/umul.S
@@ -21,7 +21,9 @@
  */
 
 	.globl .umul
+	.globl _Umul
 .umul:
+_Umul:	/* needed for export */
 	or	%o0, %o1, %o4
 	mov	%o0, %y		! multiplier -> Y