drm/simpledrm: Use drm_atomic_get_new_plane_state()

commit acf16289637eb147e30676129ab8fbfb2fc329ee from
https://nv-tegra.nvidia.com/r/3rdparty/canonical/linux-jammy.git

 jetson_36.3

Lookup the plane's state in atomic_update with the helper
drm_atomic_get_new_plane_state(). Also rename the helpers'
state arguments. No functional changes.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220922130944.27138-3-tzimmermann@suse.de


(cherry picked from commit 0055e45d)
Change-Id: Ia1638d1f3b7becd2ddc8c2fb0ef24b60da64e30a
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/3rdparty/canonical/linux-jammy/+/2985858


Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Signed-off-by: Rajeshkumar Ramasamy <rajeshkumar.ramasamy@windriver.com>