microblaze: Use standard interrupt_init() function

Do not use microblaze specific interrupt init function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/cpu/interrupts.c

@@ -109,7 +109,7 @@ static void intc_init(void)
 	      intc->iar, intc->mer);
 }
 
-int interrupts_init(void)
+int interrupt_init(void)
 {
 	int i;
 

arch/microblaze/include/asm/microblaze_intc.h

@@ -34,5 +34,3 @@ struct irq_action {
  */
 int install_interrupt_handler(int irq, interrupt_handler_t *hdlr,
 				       void *arg);
-
-int interrupts_init(void);

arch/microblaze/lib/board.c

@@ -55,7 +55,7 @@ init_fnc_t *init_sequence[] = {
 #endif
 	display_banner,
 #ifndef CONFIG_SPL_BUILD
-	interrupts_init,
+	interrupt_init,
 	timer_init,
 #endif
 	NULL,