common/board_r: arm: Merge initr_enable_interrupts into interrupts_init

initr_enable_interrupts() is an ARM-specific wrapper over
enable_interrupts(), which is run during the common init sequence. It can
be eliminated by moving the enable_interrupts() call to the end of
interrupt_init() function, in arch/arm/lib/interrupts*.c.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/lib/interrupts.c

@@ -34,6 +34,8 @@ int interrupt_init(void)
 	 */
 	IRQ_STACK_START_IN = gd->irq_sp + 8;
 
+	enable_interrupts();
+
 	return 0;
 }