Add board file for peach_pit

This adds a softlink to servo/data/servo_spring_overlay.xml, as as of
now spring and pit use exactly the same XML files.

Should these platforms deviate, a separate pit xml file could be
introduced.

BUG=chrome-os-partner:21116
TEST=manual
   sudo servod --board=peach_pit
   does not complain about the missing data file anymore.

Change-Id: Ifcbe01317ecbde725b1c71fa09a6a245207b1135
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/62760
1 file changed