ARM: Perf: Add PMU support for Krait Pass 2

Add perf support for Krait P2 which has different base
addresses and supports counting of VeNUM events.

Change-Id: I39e6a52314f2463dfea0765c68825dd0d84dd04f
Signed-off-by: Ashwin Chaugule <ashwinc@codeaurora.org>
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index c8f963c..be324ac 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -85,7 +85,7 @@
 	void		(*start)(void);
 	void		(*stop)(void);
 	void		(*reset)(void *);
-	const unsigned	(*cache_map)[PERF_COUNT_HW_CACHE_MAX]
+	unsigned	(*cache_map)[PERF_COUNT_HW_CACHE_MAX]
 				    [PERF_COUNT_HW_CACHE_OP_MAX]
 				    [PERF_COUNT_HW_CACHE_RESULT_MAX];
 	const unsigned	(*event_map)[PERF_COUNT_HW_MAX];