drm/i915: Make pin count per VMA

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --cc drivers/gpu/drm/i915/i915_debugfs.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_drv.h
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gem.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gem_context.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gem_evict.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gem_execbuffer.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gem_tiling.c
Simple merge

diff --cc drivers/gpu/drm/i915/i915_gpu_error.c
Simple merge

diff --cc drivers/gpu/drm/i915/intel_fbdev.c
Simple merge

diff --cc drivers/gpu/drm/i915/intel_overlay.c
Simple merge

diff --cc drivers/gpu/drm/i915/intel_pm.c
Simple merge

diff --cc drivers/gpu/drm/i915/intel_ringbuffer.c
Simple merge