drm/msm: add extern C guard for the UAPI header

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com> (over irc)
This commit is contained in:
Emil Velikov 2016-04-07 19:03:46 +01:00
commit a62424e29d