STM32 QSPIF: add DISCO_L496AG, DISCO_F746NG and DISCO_F769NI

Author: jeromecoutant

components/storage/blockdevice/COMPONENT_QSPIF/mbed_lib.json

@@ -20,9 +20,18 @@
         "DISCO_L476VG": {
             "QSPI_FREQ": "80000000"
         },
+        "DISCO_L496AG": {
+            "QSPI_FREQ": "8000000"
+        },
         "DISCO_F469NI": {
             "QSPI_FREQ": "80000000"
         },
+        "DISCO_F746NG": {
+            "QSPI_FREQ": "80000000"
+        },
+        "DISCO_F769NI": {
+            "QSPI_FREQ": "8000000"
+        },
         "NRF52840_DK": {
             "QSPI_FREQ": "32000000"
         }

targets/targets.json

@@ -3628,6 +3628,7 @@
             "STM32F746NG",
             "STM_EMAC"
         ],
+        "components_add": ["QSPIF"],
         "supported_form_factors": ["ARDUINO"],
         "config": {
             "clock_source": {
@@ -3674,6 +3675,7 @@
             "STM32F769NI",
             "STM_EMAC"
         ],
+        "components_add": ["QSPIF"],
         "supported_form_factors": ["ARDUINO"],
         "config": {
             "flash_dual_bank": {
@@ -7118,6 +7120,7 @@
         "supported_form_factors": ["ARDUINO"],
         "core": "Cortex-M4F",
         "extra_labels_add": ["STM32L4", "STM32L496AG", "STM32L496xG"],
+        "components_add": ["QSPIF"],
         "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",