drm/shmob: Update copyright notice

The "Renesas Corporation" listed in the copyright notice doesn't exist.
Replace it with "Renesas Electronics Corporation" and update the
copyright years.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

diff --cc drivers/gpu/drm/shmobile/shmob_drm_backlight.c
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_backlight.h
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_crtc.c
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_crtc.h
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_drv.c
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_drv.h
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_kms.c
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_kms.h
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_plane.c
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_plane.h
Simple merge

diff --cc drivers/gpu/drm/shmobile/shmob_drm_regs.h
Simple merge