[SPARC/SPARC64]: Fix usage of .section .sched.text in assembler code.

ld will generate an unique named section when assembler do not use
"ax" but gcc does. Add the missing annotation.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc/lib/rwsem.S

@@ -7,7 +7,7 @@
 #include <asm/ptrace.h>
 #include <asm/psr.h>
 
-	.section .sched.text
+	.section .sched.text, "ax"
 	.align	4
 
 	.globl		___down_read

arch/sparc64/lib/rwsem.S

@@ -6,7 +6,7 @@
 
 #include <asm/rwsem-const.h>
 
-	.section	.sched.text
+	.section	.sched.text, "ax"
 
 	.globl		__down_read
 __down_read: