Fix an incorrect prototype

The header does not match the implementation.

See also crbug.com/772533

BUG=chromium:770183
BRANCH=none
TEST=FEATURES=test emerge-reef-uni mosys
See no warnings introduced

Change-Id: I976bed56fed27405e7b5e9a757b544e302a2cf9c
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/721072
Reviewed-by: Jason Clinton <jclinton@chromium.org>
2 files changed