Fix error when building flashrom from chroot.

Building flashrom w/ "make" inside chroot fails due to compiler
warnings. This change fixes the warnings.

BUG=None.
TEST="make" from chroot, also confirm emerge still works.

Change-Id: Ied4da260f43e2342975f9070da5e5f1e7154e747
Reviewed-on: https://gerrit.chromium.org/gerrit/28324
Commit-Ready: Shawn Nematbakhsh <shawnn@chromium.org>
Tested-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Micah Catlin <micahc@chromium.org>
1 file changed