fix script did not echo version to config

Author: me-no-dev

tools/prepare-libs.sh

@@ -132,8 +132,8 @@ rm platform_start.txt platform_mid.txt 1platform_mid.txt
 #sdkconfig
 IDF_COMMIT=$(git -C $IDF_PATH rev-parse --short HEAD)
 IDF_BRANCH=$(git -C $IDF_PATH symbolic-ref --short HEAD)
-echo #define CONFIG_ARDUINO_IDF_COMMIT "$IDF_COMMIT">> build/include/sdkconfig.h
-echo #define CONFIG_ARDUINO_IDF_BRANCH "$IDF_BRANCH">> build/include/sdkconfig.h
+echo "#define CONFIG_ARDUINO_IDF_COMMIT \"$IDF_COMMIT\"" >> build/include/sdkconfig.h
+echo "#define CONFIG_ARDUINO_IDF_BRANCH \"$IDF_BRANCH\"" >> build/include/sdkconfig.h
 mkdir -p $AR_SDK/include/config && cp -f build/include/sdkconfig.h $AR_SDK/include/config/sdkconfig.h
 cp -f sdkconfig $AR_SDK/sdkconfig