video: tegra: dc: update VIC identification

video: tegra: dc: update VIC identification

Adding few more checks to help VIC identification.
Comparing 1001/1000 value of pixclock to take care of
pclk rounding-off issue. Also, comparing mode->flag value
helps in choosing the CEA mode with matching aspect ratio.

bug 200148145
bug 200145631
bug 1689283
bug 200154490

Change-Id: Ia80ba4dd3337772b24b74ee355a1032d59b31d9d
Signed-off-by: Naveen Kumar S <nkumars@nvidia.com>
Reviewed-on: http://git-master/r/838452
(cherry picked from commit 1ee939ea33c893a5b98652cef4d0fae5c7f25c32)
Reviewed-on: http://git-master/r/839223
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Mitch Luban <mluban@nvidia.com>
GVS: Gerrit_Virtual_Submit