perf/x86/amd/uncore: Rename cpufeatures macro for cache counters

perf/x86/amd/uncore: Rename cpufeatures macro for cache counters

In Family 17h, L3 is the last level cache as opposed to L2 in previous
families. Avoid this name confusion and rename X86_FEATURE_PERFCTR_L2 to
X86_FEATURE_PERFCTR_LLC to indicate the performance counter on the last
level of cache.

Signed-off-by: Janakarajan Natarajan <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Borislav Petkov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Suravee Suthikulpanit <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/016311029fdecdc3fdc13b7ed865c6cbf48b2f15.1497452002.git.Janakarajan.Natarajan@amd.com
Signed-off-by: Ingo Molnar <[email protected]>