no build.sh when make vgpu

[bx0216]

Step 23/32 : RUN rm -rf /libvgpu/build
---> Running in 5e5df0ffce71
Removing intermediate container 5e5df0ffce71
---> c5a3094a4a46
Step 24/32 : RUN bash ./build.sh
---> Running in 09a9e3d07e57
bash: ./build.sh: No such file or directory
The command '/bin/sh -c bash ./build.sh' returned a non-zero code: 127
make: *** [Makefile:56: vgpu] Error 127

[bx0216]

need to add libvgpu sub module