drm: update to i915 1.3.0

Add support for vblank ioctls to i915 driver

From: Dave Airlie <airlied@linux.ie>
Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --cc drivers/char/drm/i915_dma.c
Simple merge

diff --cc drivers/char/drm/i915_drm.h
Simple merge

diff --cc drivers/char/drm/i915_drv.c
Simple merge

diff --cc drivers/char/drm/i915_drv.h
Simple merge

diff --cc drivers/char/drm/i915_irq.c
Simple merge

diff --cc drivers/char/drm/i915_mem.c
Simple merge