Update rtconfig.py

Author: wugensheng-code

bsp/k210/rtconfig.py

@@ -15,7 +15,7 @@
 
 if  CROSS_TOOL == 'gcc':
     PLATFORM    = 'gcc'
-    EXEC_PATH   = r'D:\K210\xpack-riscv-none-embed-gcc-8.3.0-1.2-win32-x64\xpack-riscv-none-embed-gcc-8.3.0-1.2\bin'
+    EXEC_PATH   = r'/opt/gnu-mcu-eclipse/riscv-none-gcc/8.2.0-2.1-20190425-1021/bin'
 else:
     print('Please make sure your toolchains is GNU GCC!')
     exit(0)