remove msm;msm_7x30;msm_8x60 and move msm_7x27A to msm

as we are going to be compiling only for pico (msm_7x27A) with these sources,
keeping the sources in drivers/video/msm should be more appropriate.

Change-Id: I002442b28310f6ed054232fa7c1383e65de5224f