update h7 to cmake, and move iar build to cmake

hw/bsp/imxrt/family.mk

@@ -4,13 +4,12 @@ DEPS_SUBMODULES += $(SDK_DIR) lib/CMSIS_5
 
 include $(TOP)/$(BOARD_PATH)/board.mk
 
+CPU_CORE ?= cortex-m7
+include $(TOP)/tools/make/cpu/$(CPU_CORE).mk
+
 CFLAGS += \
-  -mthumb \
-  -mabi=aapcs \
-  -mcpu=cortex-m7 \
-  -mfloat-abi=hard \
-  -mfpu=fpv5-d16 \
-  -D__ARMVFP__=0 -D__ARMFPV5__=0\
+  -D__ARMVFP__=0 \
+  -D__ARMFPV5__=0 \
   -DXIP_EXTERNAL_FLASH=1 \
   -DXIP_BOOT_HEADER_ENABLE=1 \
   -DCFG_TUSB_MCU=OPT_MCU_MIMXRT1XXX
@@ -58,9 +57,6 @@ INC += \
 
 SRC_S += $(MCU_DIR)/gcc/startup_$(MCU_VARIANT).S
 
-# For freeRTOS port source
-FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/ARM_CM7/r0p1
-
 # UF2 generation, iMXRT need to strip to text only before conversion
 APPLICATION_ADDR = 0x6000C000
 $(BUILD)/$(PROJECT).uf2: $(BUILD)/$(PROJECT).elf