ec/google/chromeec: Update some PD and DisplayPort APIs

1. Update google_chromeec_pd_get_amode() to return bitmask.
2. Update google_chromeec_wait_for_displayport() to handle the
   updated return value of google_chromeec_pd_get_amode().
3. Drop google_chromeec_pd_get_amode() from ec.h and make it static
   because it's not used outside of ec.c.

BUG=b:192947843

Signed-off-by: Derek Huang <derek.huang@intel.corp-partner.google.com>
Change-Id: I6020c4305e30018d4c97d862c16e8d642c951765
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58058
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

0 files changed, 0 insertions, 0 deletions