media: cx231xx: bring back PWR_CTL_EN modification

media: cx231xx: bring back PWR_CTL_EN modification

Bring back PWR_CTL_EN modification for AVerMedia H837 TV tuner.

This change modifies upstream commit
https://github.com/torvalds/linux/commit/082417d10fafe7be835d143ade7114b5ce26cb50
which removed I2C port 3 switching by modifying PWR_CTL_EN directly.

The AVerMedia tuner requires the switch to work correctly.

Bug 2190055

Change-Id: I849be037261e41b7d99f7234f6686762b8245207
Signed-off-by: Magdalena Grodzinska <mgrodzinska@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1806531
Reviewed-by: Aly Hirani <ahirani@nvidia.com>
Reviewed-by: Patrick Horng <phorng@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vinayak Pane <vpane@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>