Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWE

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/mach-common/ints-priority.c

@@ -216,7 +216,7 @@ int bfin_internal_set_wake(unsigned int irq, unsigned int state)
 	wakeup |= KPADWE;
 	break;
 #endif
-#ifdef IRQ_CNT
+#ifdef CONFIG_BF54x
 	case IRQ_CNT:
 	wakeup |= ROTWE;
 	break;