hikey: Enable drm_hwcomposer on 4.9 kernels

Enable drm_hwcomposer on hikey for 4.9 kernels

Note: This patch will have to be merged in lockstep
with a prebuilt kernel update that includes the following
commits:
https://android-review.googlesource.com/c/kernel/hikey-linaro/+/748309

Change-Id: I85644529527c37048dec6d38f159e5adf09ccef2
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed