msm: vidc: Update input extradata buffer requirement

Firmware updates input extradata buffer size upon getting
new dimensions for output buffer. Update input extradata
plane size from buffer requirement on updating output buffer
dimensions to ensure client gets the correct buffer size.

CRs-Fixed: 2135203

Change-Id: I91707153769ee4d79b8c830daa6486170f167423
Signed-off-by: Prateek Shrivastava <pshrivas@codeaurora.org>