Comment 4 for bug 1629989

For reference, these are the commits between 4.7.0+git11-gbfb9baf-1 and 4.7.0+git30-gd422ba2-1.
(Newest at the top)

[d422ba2] fix Intel Goldmont offcore_response average latency support
[ef73810] Add support for Intel Knights Landing core PMU
[359a11a] allow . as a delimiter for event strings
[408701e] fix encodings of L2_RQSTS:PF_MISS and PF_HIT for HSW/BDW
[7ac65a6] add BR_INST_RETIRED:ALL_TAKEN_BRANCHES to Intel Silvermont event table
[6e764d5] add BR_INST_RETIRED:ALL_TAKEN_BRANCHES to Intel Goldmont event table
[25117cf] add SQ_MISC:SPLIT_LOCK to Intel IvyBridge event table
[073e4db] add SQ_MISC:SPLIT_LOCK to Intel Haswell event table
[98a2c64] update Intel Skylake event table
[bdf0395] Add SQ_MISC:SPLIT_LOCK to Intel Broadwell event table
[06b296c] fix struct validation for pfm_event_attr_info_t
[a347a0a] remove duplicate offcore_response_*:l3_miss umask for SNB_EP
[1d57dbe] fix error in pfmlib_is_blacklisted_pmu() with some compilers
[a3012f8] add Intel Haswell-EP alias for offcore_response remote L3 miss
[f7d5075] fix Intel Broadwell-EP OFFCORE_RESPONSE:L3_MISS_REMOTE
[c7e1e2a] update Intel Goldmont support
[b74653d] add support for Intel Goldmont processor
[a31c90e] fix/add offcore_response:l3_miss alias for Intel SNB/IVB/HSW/BDW/SKL
[487937d] IBM Power8 add missing suppored_plm mask initialization