Add config for Nucleo F411RE. (ARMmbed#106)

* Add config for Nucleo F411RE.
* C030 optimizations

by adding a few more C030 lines to the .mbedignore,
we can drop binary size to 30.3 kB.

Author: JammuKekkonen

.mbedignore

@@ -12,11 +12,18 @@ mbed-os/features/FEATURE_COMMON_PAL/mbed-trace/test/*
 mbed-os/features/FEATURE_COMMON_PAL/nanostack-libservice/source/*
 mbed-os/features/FEATURE_COMMON_PAL/nanostack-libservice/test/*
 mbed-os/features/FEATURE_UVISOR/*
+mbed-os/features/cellular/*
+mbed-os/features/lorawan/*
 mbed-os/features/nanostack/*
 mbed-os/features/netsocket/*
 mbed-os/features/storage/*
+mbed-os/features/nvstore/*
 mbed-os/features/filesystem/littlefs/*
 mbed-os/features/filesystem/fat/*
+mbed-os/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/onboard_modem_api.c
+mbed-os/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/onboard_modem_api.h
+mbed-os/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/min_battery_voltage.c
+mbed-os/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/TARGET_UBLOX_C030/min_battery_voltage.h
 mbed-os/features/unsupported/*
 mbed-os/features/cellular/*
 mbed-os/features/lorawan/*

mbed_app.json

@@ -123,6 +123,17 @@
             "application-start-address"        : "(MBED_CONF_APP_FLASH_START_ADDRESS+38*1024)",
             "max-application-size"             : "DEFAULT_MAX_APPLICATION_SIZE"
         },
+        "NUCLEO_F411RE": {
+            "flash-start-address"              : "0x08000000",
+            "flash-size"                       : "(512*1024)",
+            "sotp-section-1-address"           : "(MBED_CONF_APP_FLASH_START_ADDRESS+32*1024)",
+            "sotp-section-1-size"              : "(16*1024)",
+            "sotp-section-2-address"           : "(MBED_CONF_APP_FLASH_START_ADDRESS+48*1024)",
+            "sotp-section-2-size"              : "(16*1024)",
+            "update-client.application-details": "(MBED_CONF_APP_FLASH_START_ADDRESS+64*1024)",
+            "application-start-address"        : "(MBED_CONF_APP_FLASH_START_ADDRESS+65*1024)",
+            "max-application-size"             : "DEFAULT_MAX_APPLICATION_SIZE"
+        },
         "NUCLEO_F429ZI": {
             "flash-start-address"              : "0x08000000",
             "flash-size"                       : "(2048*1024)",