msm: vidc: avoid fd based search for non-extradata plane

Fd based search overrides the result of handle based search for
the non-extradata plane and hence fetches a wrong buffer. Instead
of fresh map, device address is computed with that buffer's base
address. Remove the fd based search for non-extradata plane.

CRs-Fixed: 1045763
Change-Id: I48cd41e9f93c6554d115a43b6e21f35366276208
Signed-off-by: Abdulla Anam <abdullahanam@codeaurora.org>