Merge branch 'msm-fixes-4.10' of git://people.freedesktop.org/~robclark/linux into...

A few fixes for 4.10.. the first fixes a long-standing logic bug, that
by luck (ie. size of packets written into RB for a submit) wasn't hit
on a3xx/a4xx but was causing intermittent GPU lockups on a5xx.  And a
couple other robustness issues that Jordan noticed.

* 'msm-fixes-4.10' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
  drm/msm: Put back the vaddr in submit_reloc()
  drm/msm: Ensure that the hardware write pointer is valid