cmake: STM32H7: enable PORTENTA* target

Author: facchinm

connectivity/drivers/emac/TARGET_STM/TARGET_STM32H7/CMakeLists.txt

@@ -3,6 +3,8 @@
 
 if("DISCO_H747I" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_DISCO_H747I)
+elseif("PORTENTA_H7" IN_LIST MBED_TARGET_LABELS)
+    add_subdirectory(TARGET_PORTENTA_H7)
 elseif("NUCLEO_H743ZI" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_NUCLEO_H743ZI)
 elseif("NUCLEO_H743ZI2" IN_LIST MBED_TARGET_LABELS)

connectivity/drivers/emac/TARGET_STM/TARGET_STM32H7/TARGET_PORTENTA_H7/CMakeLists.txt

@@ -0,0 +1,7 @@
+# Copyright (c) 2020 ARM Limited. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+target_sources(mbed-emac
+    INTERFACE
+        stm32h7_eth_init.c
+)

targets/TARGET_STM/TARGET_STM32H7/TARGET_STM32H747xI/CMakeLists.txt

@@ -3,6 +3,8 @@
 
 if("DISCO_H747I" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_DISCO_H747I)
+elseif("PORTENTA_H7" IN_LIST MBED_TARGET_LABELS)
+    add_subdirectory(TARGET_PORTENTA_H7)
 elseif("STM32H7A3xIQ" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_STM32H7A3xIQ)
 endif()