tcpmv2: Fix LPM exit debounce timer
tcpmv2: Fix LPM exit debounce timer

The LPM exit debounce timer wasn't working because tc_pause_event_loop()
is called on entry to low power mode. Add a call to tc_start_event_loop()
so that the timer is checked and we exit low power mode at the right time.

BUG=b:155364505 b:160261795 b:160430262
BRANCH=none
TEST=LPM exit on resume

Signed-off-by: Edward Hill <db1406b34e091703092b6b136bdfeb2c8125fc0e@chromium.org>
Change-Id: I94f2f91efcfd48172b9345dd59aa1e8594118814
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2281132
Reviewed-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>
Tested-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec