arch/arm/src/stm32wl5: CMake build implemented for STM32 STM32WL5

- added STMicroelectronics STM32WL5

Signed-off-by: simbit18 <simbit18@gmail.com>

Update CMakeLists.txt

Update CMakeLists.txt

arch/arm/src/stm32wl5/CMakeLists.txt

@@ -0,0 +1,49 @@
+# ##############################################################################
+# arch/arm/src/stm32wl5/CMakeLists.txt
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License.  You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+# ##############################################################################
+
+# Required STM32WL5 files
+
+set(SRCS
+    stm32wl5_allocateheap.c
+    stm32wl5_exti_gpio.c
+    stm32wl5_gpio.c
+    stm32wl5_irq.c
+    stm32wl5_lowputc.c
+    stm32wl5_rcc.c
+    stm32wl5_serial.c
+    stm32wl5_start.c
+    stm32wl5_waste.c
+    stm32wl5_uid.c
+    stm32wl5_lse.c
+    stm32wl5_lsi.c
+    stm32wl5_idle.c
+    stm32wl5_pwr.c
+    stm32wl5_tim.c
+    stm32wl5_flash.c
+    stm32wl5_timerisr.c
+    stm32wl5_spi.c)
+
+if(CONFIG_STM32WL5_IPCC)
+  list(APPEND SRCS stm32wl5_ipcc.c)
+endif()
+
+target_sources(arch PRIVATE ${SRCS})