msm: vidc_3x: Assign and pass hal buffer type to smem

v4l2 buffer type is passed to smem which results in
wrong context bank mapping of input buffer. Correct
this to pass hal buffer type.

Change-Id: Iabab8ab89e35b46aba0810d57bc33cba7e2e7ccd
Signed-off-by: Vasantha Balla <vballa@codeaurora.org>