Merge branch 'working-hikey-tracking-gpu-v4.4' into working-hikey-mainline-rebase-v4.4-c30

* working-hikey-tracking-gpu-v4.4:
  mali: Fix mali regulator clk handling on suspned/resume
  gpu: arm: fix dma_ops build error
  gpu/mali: fix get_unused_fd build issue
  mali_hikey: Modify irq initialization in mali hikey platform logic
  drivers/gpu/arm/utgard: Disable fbdev physical address check
  drivers/gpu: arm/utgard: Fix build issue.
  drivers/gpu/arm/utgard: add basic HiKey platform files
  drivers/gpu/arm/utgard: add Hi6220 register definitions
  drivers/gpu/arm/utgard: add option for custom device tree
  drivers/gpu: Add ARM Mali Utgard r6p0 driver