arch/arm/src/gd32f4: CMake build implemented for GigaDevice GD32F4xx Series

- added GigaDevice GD32F4xx Series

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

arch/arm/src/gd32f4/CMakeLists.txt

@@ -0,0 +1,69 @@
+# ##############################################################################
+# arch/arm/src/gd32f4/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.
+#
+# ##############################################################################
+
+list(
+  APPEND
+  SRCS
+  gd32f4xx_allocateheap.c
+  gd32f4xx_start.c
+  gd32f4xx_rcu.c
+  gd32f4xx_serial.c
+  gd32f4xx_lowputc.c
+  gd32f4xx_gpio.c
+  gd32f4xx_syscfg.c
+  gd32f4xx_irq.c
+  gd32f4xx_exti.c
+  gd32f4xx_dma.c)
+
+if(NOT CONFIG_SCHED_TICKLESS)
+  list(APPEND SRCS gd32f4xx_timerisr.c)
+else()
+  list(APPEND SRCS gd32f4xx_tickless.c)
+endif()
+
+if(NOT CONFIG_ARCH_IDLE_CUSTOM)
+  list(APPEND SRCS gd32f4xx_idle.c)
+endif()
+
+list(APPEND SRCS gd32f4xx_fmc.c gd32f4xx_progmem.c)
+
+if(CONFIG_GD32F4_ENETMAC)
+  list(APPEND SRCS gd32f4xx_enet.c)
+endif()
+
+if(CONFIG_GD32F4_PMU)
+  list(APPEND SRCS gd32f4xx_pmu.c)
+endif()
+
+if(CONFIG_GD32F4_SPI)
+  list(APPEND SRCS gd32f4xx_spi.c)
+endif()
+
+if(CONFIG_GD32F4_I2C)
+  list(APPEND SRCS gd32f4xx_i2c.c)
+endif()
+
+if(CONFIG_GD32F4_SDIO)
+  list(APPEND SRCS gd32f4xx_sdio.c)
+endif()
+
+target_sources(arch PRIVATE ${SRCS})