All PMU drivers are going to depend on PERF_EVENTS, so let's make this
dependency common and simplify the individual Kconfig entries.
Signed-off-by: NMark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>