Fix: Propagate PICO_SDK_VERSION_* to parent scope in RP2040 port (#1326)

Author: shengt25

portable/ThirdParty/GCC/RP2040/CMakeLists.txt

@@ -45,6 +45,9 @@ if (NOT TARGET _FreeRTOS_kernel_inclusion_marker)
             set(FREERTOS_KERNEL_PATH ${FREERTOS_KERNEL_PATH} PARENT_SCOPE)
             set(PICO_CONFIG_HEADER_FILES ${PICO_CONFIG_HEADER_FILES} PARENT_SCOPE)
             set(PICO_SDK_POST_LIST_FILES ${PICO_SDK_POST_LIST_FILES} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_MAJOR ${PICO_SDK_VERSION_MAJOR} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_MINOR ${PICO_SDK_VERSION_MINOR} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_REVISION ${PICO_SDK_VERSION_REVISION} PARENT_SCOPE)
         endif()
     endif()
 endif()