[SPARC64]: Mark __ex_table section correctly.

We must use the "a" (allocate) attribute every time we
emit an entry into the __ex_table section.

For consistency, use "a" instead of #alloc which is some
Solaris compat cruft GNU as provides on Sparc.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/lib/U3copy_from_user.S b/arch/sparc64/lib/U3copy_from_user.S
index df600b6..f5bfc8d9 100644
--- a/arch/sparc64/lib/U3copy_from_user.S
+++ b/arch/sparc64/lib/U3copy_from_user.S
@@ -9,7 +9,7 @@
 	.align 4;		\
 99:	retl;			\
 	 mov	1, %o0;		\
-	.section __ex_table;	\
+	.section __ex_table,"a";\
 	.align 4;		\
 	.word 98b, 99b;		\
 	.text;			\