Merge pull request #12411 from soleilplanet/L496AG_port

add FLASHIAP in targets.json for KVStore used in PDMC

Author: 0xc0170

targets/targets.json

@@ -12236,7 +12236,8 @@
             "STM32L496xG"
         ],
         "components_add": [
-            "QSPIF"
+            "QSPIF",
+            "FLASHIAP"
         ],
         "config": {
             "clock_source": {
@@ -14744,4 +14745,4 @@
         "version": "1",
         "public": false
     }
-}
+}