DISCO_L496AG: add platform in targets.json file

Author: bcostm

targets/targets.json

@@ -3839,6 +3839,27 @@
         "release_versions": ["2"],
         "device_name": "nRF51822_xxAC"
     },
+    "DISCO_L496AG": {
+        "inherits": ["FAMILY_STM32"],
+        "supported_form_factors": ["ARDUINO", "MORPHO"],
+        "core": "Cortex-M4F",
+        "extra_labels_add": ["STM32L4", "STM32L496AG", "STM32L496xG"],
+        "config": {
+            "clock_source": {
+                "help": "Mask value : USE_PLL_HSE_EXTC (need HW patch) | USE_PLL_HSE_XTAL (need HW patch) | USE_PLL_HSI | USE_PLL_MSI",
+                "value": "USE_PLL_MSI",
+                "macro_name": "CLOCK_SOURCE"
+            },
+            "lowpowertimer_lptim": {
+                "help": "This target supports LPTIM. Set value 1 to use LPTIM for LOWPOWERTIMER, or 0 to use RTC wakeup timer",
+                "value": 1
+            }
+        },
+        "detect_code": ["0822"],
+        "device_has_add": ["ANALOGOUT", "CAN", "LOWPOWERTIMER", "SERIAL_ASYNCH", "SERIAL_FC", "TRNG", "FLASH"],
+        "release_versions": ["2", "5"],
+        "device_name": "STM32L496AG"
+    },
     "NUCLEO_L496ZG": {
         "inherits": ["FAMILY_STM32"],
         "supported_form_factors": ["ARDUINO", "MORPHO"],