Patch merged into coreboot/master: rockchip/rk3399: display: Update edp initialization retry

the following patch was just integrated into master:
commit e4b9af15d8775b602020ccadbfc138378fbc7c1e
Author: Martin Roth 
Date:   Tue Nov 29 10:50:52 2016 -0700

rockchip/rk3399: display: Update edp initialization retry

Follow on patch to clean up the previous retry code.
    Previous patches:
    coreboot commit 079b5c65
    (rockchip/rk3399: display: Retry edp initialization if it fails)
    cros commit 28c57a6e
    (rockchip/rk3399: display: retry edp initialization if edp initial fail)

- Reduce the jumping around via goto statements
    - Break the retry code out into a separate function that also
    prints the error messages.

BRANCH=gru
    BUG=chrome-os-partner:60150
    TEST=Rebuild Kevin and Gru

Change-Id: I3b6cf572073e4dcac83da09621bafde179af2613
    Signed-off-by: Martin Roth 
    Reviewed-on: https://review.coreboot.org/17642
    Tested-by: build bot (Jenkins)
    Reviewed-by: Julius Werner

See https://review.coreboot.org/17642 for details.

-gerrit