Enhance chipidea (#2075)

* update chipidea dcd, remove manual ep_count and use DCCPARAMS to get number of endpoint instead
* add dcd dcache for chipidea
* add cmake for lpc18
* add makefile build for mcx
* use fork of mcu sdk
* fix ci build with nrf
* flash rp2040 with openocd

tools/cmake/cpu/cortex-m3.cmake

@@ -0,0 +1,10 @@
+if (TOOLCHAIN STREQUAL "gcc")
+  list(APPEND TOOLCHAIN_COMMON_FLAGS
+    -mthumb
+    -mcpu=cortex-m3
+    )
+
+  set(FREERTOS_PORT GCC_ARM_CM3 CACHE INTERNAL "")
+else ()
+  # TODO support IAR
+endif ()