CRIS: Don't use mask_irq as symbol name

kernel/irq/chip.c now uses these, which lead to compile error
for CRISv32.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
diff --git a/arch/cris/arch-v10/kernel/irq.c b/arch/cris/arch-v10/kernel/irq.c
index 1a61efc..a0c0df8 100644
--- a/arch/cris/arch-v10/kernel/irq.c
+++ b/arch/cris/arch-v10/kernel/irq.c
@@ -17,8 +17,8 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
-#define mask_irq(irq_nr) (*R_VECT_MASK_CLR = 1 << (irq_nr));
-#define unmask_irq(irq_nr) (*R_VECT_MASK_SET = 1 << (irq_nr));
+#define crisv10_mask_irq(irq_nr) (*R_VECT_MASK_CLR = 1 << (irq_nr));
+#define crisv10_unmask_irq(irq_nr) (*R_VECT_MASK_SET = 1 << (irq_nr));
 
 /* don't use set_int_vector, it bypasses the linux interrupt handlers. it is
  * global just so that the kernel gdb can use it.
@@ -116,12 +116,12 @@
 
 static void enable_crisv10_irq(unsigned int irq)
 {
-	unmask_irq(irq);
+	crisv10_unmask_irq(irq);
 }
 
 static void disable_crisv10_irq(unsigned int irq)
 {
-	mask_irq(irq);
+	crisv10_mask_irq(irq);
 }
 
 static void ack_crisv10_irq(unsigned int irq)