arch/arm: Correct checkpatch errors

Correct whitespace issues in arch/arm and arch/arm64.
Enclose complex values in parenthesis.

Change-Id: I74b68f485adff1e6f0fa433e51e12b59ccea654b
Signed-off-by: Logan Carlson <logancarlson@google.com>
Reviewed-on: https://review.coreboot.org/19989
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
diff --git a/src/arch/arm/div0.c b/src/arch/arm/div0.c
index afd9dad..e474f73 100644
--- a/src/arch/arm/div0.c
+++ b/src/arch/arm/div0.c
@@ -19,7 +19,7 @@
 
 /* Replacement (=dummy) for GNU/Linux division-by zero handler */
 /* recursion is ok here because we have no formats ... */
-void __div0 (void)
+void __div0(void)
 {
 	printk(BIOS_EMERG, "DIVIDE BY ZERO! continuing ...\n");
 }