deinterlace: vpp: change mc update flow [1/1]

deinterlace: vpp: change mc update flow [1/1]

PD#SWPL-14142

Problem:
display abnormal after play 1 hour.
this is because rdma can't been called in two thread.
mc update bit in hw timer, this causes pps's register
to be set incorrectly.

Solution:
call mc update function in video.c

Verify:
txlx

Change-Id: I750aa5c242a1077691f82c3b2361ee46b3202313
Signed-off-by: Jihong Sui <jihong.sui@amlogic.com>