disable nvstore for sequana_psa

Author: Oren Cohen

features/storage/nvstore/mbed_lib.json

@@ -43,6 +43,12 @@
             "area_1_size": 16384,
             "area_2_address": "0x1007C000",
             "area_2_size": 16384
+        },
+        "FUTURE_SEQUANA_PSA": {
+            "enabled" : false
+        },
+        "FUTURE_SEQUANA_M0_PSA": {
+            "enabled" : false
         }
     }
 }