xtensa: fix error: use of undeclared identifier 'intenable2'

This is likely a miss from:
df40dff arch: xtensa: clean up interrupt handling

Signed-off-by: William Tambe <williamt@cadence.com>

Author: williamtcdns

arch/xtensa/core/vector_handlers.c

@@ -468,7 +468,7 @@ __unused static void xtensa_handle_irq_lvl(int irq_lvl)
 
 #if XCHAL_NUM_INTERRUPTS > 64
 	__asm__ volatile("rsr.interrupt2 %0" : "=r"(irq_mask));
-	__asm__ volatile("rsr.intenable2 %0" : "=r"(intenable2));
+	__asm__ volatile("rsr.intenable2 %0" : "=r"(intenable));
 	irq_mask &= intenable;
 	irq_mask &= xtensa_lvl_mask[irq_lvl - 1][2];
 	while (irq_mask) {