video: tegra: fb: Configure dc from fb

This patch contains following changes:
1. Modify tegra_fb_update_monspecs to select best mode to apply
   on framebuffer, in HDMI hotplug.
2. Add a console_lock to prevent corruption while fbcon running
   in multiple threads.
3. Add a tegra_dc_disable/enable in tegra_fb_set_par to reflect
   the programmed new mode applied on DC.

Bug: 1005399
Change-Id: I133b38b00f25f767afc05549550fecde8d092fb2
Signed-off-by: Shashank Sharma <shashanks@nvidia.com>
Reviewed-on: http://git-master/r/120932
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Kiran Adduri <kadduri@nvidia.com>
Reviewed-by: Winnie Hsu <whsu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
arm: tegra: fb: Apply new mode even if its current

Set activation of a mode forcefully via setting FB_ACTIVATE_FORCE
flag. Required for stereo modes also.

Bug 1005399
Change-Id: I37872cc2a04abc8774a5f9f9df7d9e90f2c977f6
Signed-off-by: Shashank Sharma <shashanks@nvidia.com>
Reviewed-on: http://git-master/r/122087
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>
tegra fb: Better pan display handling

Change-Id: Ib21a5c62704386e21d780f8b22ad0d5b2acf1ab4
Merge "video: tegra: fb: Configure dc from fb" into cm-11.0
Merge "arm: tegra: fb: Apply new mode even if its current" into cm-11.0
Merge branch 'cm-11.0' into kk_mkt