perf vendor events intel: Update IvyTown events to v20

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lkml.kernel.org/r/20190315165219.GA21223@tassilo.jf.intel.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/pmu-events/arch/x86/ivytown/pipeline.json

 [
     {
-        "EventCode": "0x00",
         "Counter": "Fixed counter 0",
         "UMask": "0x1",
         "EventName": "INST_RETIRED.ANY",
@@ -9,7 +8,6 @@
         "CounterHTOff": "Fixed counter 0"
     },
     {
-        "EventCode": "0x00",
         "Counter": "Fixed counter 1",
         "UMask": "0x2",
         "EventName": "CPU_CLK_UNHALTED.THREAD",
@@ -19,7 +17,6 @@
     },
     {
         "PublicDescription": "Core cycles when at least one thread on the physical core is not in halt state.",
-        "EventCode": "0x00",
         "Counter": "Fixed counter 1",
         "UMask": "0x2",
         "AnyThread": "1",
@@ -29,7 +26,6 @@
         "CounterHTOff": "Fixed counter 1"
     },
     {
-        "EventCode": "0x00",
         "Counter": "Fixed counter 2",
         "UMask": "0x3",
         "EventName": "CPU_CLK_UNHALTED.REF_TSC",