[MIPS] Replace __attribute_used__ with __used

Replaces the deprecated __attribute_used__ with __used.  Also makes some
style adjustments to abide by the kernel coding conventions.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 9e66354..a2bee10 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -154,7 +154,6 @@
 };
 
 static void release_progmem(void *ptr);
-/* static __attribute_used__ void dump_vpe(struct vpe * v); */
 extern void save_gp_address(unsigned int secbase, unsigned int rel);
 
 /* get the vpe associated with this minor */
@@ -1024,7 +1023,7 @@
 	return 0;
 }
 
-__attribute_used__ void dump_vpe(struct vpe * v)
+void __used dump_vpe(struct vpe * v)
 {
 	struct tc *t;