arm-cci500: Don't enable PMU driver by default

Disable building CCI-500 PMU driver by default.

Reported-by: Russell King <linux@arm.linux.org.uk>
Cc: Punit Agrawal <punit.agrawal@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: arm@kernel.org
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index 1a82f3a..0ebca8b 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -36,7 +36,6 @@
 
 config ARM_CCI500_PMU
 	bool "ARM CCI500 PMU support"
-	default y
 	depends on (ARM && CPU_V7) || ARM64
 	depends on PERF_EVENTS
 	select ARM_CCI_PMU