drm/omap: Replace drm_gem_object_{un/reference} with put,get functions
commit 3ce11806c0ba279b5893bb9eb1d193e1acbef7b6 upstream.
This patch unifies the naming of DRM functions for reference counting
of struct drm_gem_object. The resulting code is more aligned with the
rest of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>