frameworks/base: Add DRM Separate Delivery format

Add DRM SD : "application/vnd.oma.drm.content" mimetype in the
supported file format list, so all types of DRM files
(FL,CD and SD) can be work properly.

Change-Id: Ifa78181d25e9afd34758f98a7d89c672f6f224f9
CRs-Fixed: 1088307
1 file changed