Update alderlaken perf json from v1.18 to v1.19.

Based on:
https://github.com/intel/perfmon/pull/58
perf json files created using:
https://github.com/intel/perfmon/blob/main/scripts/create_perf_json.py

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/arch/x86/alderlaken/memory.json | 7 +++++++
 tools/perf/pmu-events/arch/x86/mapfile.csv            | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/memory.json b/tools/perf/pmu-events/arch/x86/alderlaken/memory.json
index f84bf8c43495..37259d38a222 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/memory.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/memory.json
@@ -13,6 +13,13 @@
         "SampleAfterValue": "1000003",
         "UMask": "0xf4"
     },
+    {
+        "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to a DL1 miss.",
+        "EventCode": "0x05",
+        "EventName": "LD_HEAD.L1_MISS_AT_RET",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x81"
+    },
     {
         "BriefDescription": "Counts the number of cycles that the head (oldest load) of the load buffer and retirement are both stalled due to other block cases.",
         "EventCode": "0x05",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index e69b29123327..1c5776e37120 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -1,6 +1,6 @@
 Family-model,Version,Filename,EventType
 GenuineIntel-6-(97|9A|B7|BA|BF),v1.19,alderlake,core
-GenuineIntel-6-BE,v1.18,alderlaken,core
+GenuineIntel-6-BE,v1.19,alderlaken,core
 GenuineIntel-6-(1C|26|27|35|36),v4,bonnell,core
 GenuineIntel-6-(3D|47),v26,broadwell,core
 GenuineIntel-6-56,v7,broadwellde,core
-- 
2.39.2.637.g21b0678d19-goog