qcom mr1 fm

Change build flags for the old MR1 based FM to coexist with newer qcom FM.

Change-Id: I6bb4f3b2818cb4da4f7f59280a65925055d7ccb6
bt-vendor: Add epilog op.
btmac: bt-vendor: Use number width instead of precision width on format.

Change-Id: I1025d0375d3d37b512cead017e8aa28fd119903b