arm: powerpc: Tidy up code style for interrupt functions

Remove the unwanted space before the bracket.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/lib/interrupts.c b/arch/arm/lib/interrupts.c
index ee775ce..e78ca56 100644
--- a/arch/arm/lib/interrupts.c
+++ b/arch/arm/lib/interrupts.c
@@ -25,7 +25,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int interrupt_init (void)
+int interrupt_init(void)
 {
 	/*
 	 * setup up stacks if necessary
@@ -35,11 +35,11 @@
 	return 0;
 }
 
-void enable_interrupts (void)
+void enable_interrupts(void)
 {
 	return;
 }
-int disable_interrupts (void)
+int disable_interrupts(void)
 {
 	return 0;
 }