frecon: disable non main CRTs and all but primary planes at mode switch

Frecon should only display on main CRT (built-in LCD on laptops, first display
on desktops). Also, disable all other planes and overlays, so if there is
anything left over from Chrome, like cursor or video overlay we do not
want it to obscure console.

BUG=chromium:482738,406121
TEST=with 2nd monitor connected switch to frecon (VT2)

Change-Id: I65c74b8e8dda1be65dbd09a6d18e876a18e80fd2
Signed-off-by: Dominik Behr <dbehr@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/306371
Reviewed-by: St├ęphane Marchesin <marcheu@chromium.org>
Reviewed-by: Haixia Shi <hshi@chromium.org>
2 files changed