Add mb9bf568r to bsp
Merge pull request #356 from yangfasheng/master

Add mb9bf568r to bsp
finsh: allow user to disable the FINSH_USING_HISTORY
Merge pull request #357 from grissiom/enhance-finsh

finsh: allow user to disable the FINSH_USING_HISTORY
[GDB] Fix compiling error when not enable GDB.