Merge branch 'iommu-linux-4.19.y' of git://git.ti.com/rpmsg/iommu into rproc-linux...

Merge branch 'iommu-linux-4.19.y' of git://git.ti.com/rpmsg/iommu into rproc-linux-4.19.y

Merge in the updated iommu feature branch into remoteproc tree to
pull in the suspend/resume support in the OMAP IOMMU driver. The
following are the main changes:
   - improvements in the OMAP iommu to perform the enabling &
     disabling of the IOMMU from within the runtime pm callbacks
   - system suspend/resume support through late dev_pm_ops
   - two new API that needs to be invoked from the OMAP remoteproc
     driver to runtime suspend/resume the IOMMU
   - locked TLB save & restore logic
   - add needed pdata quirks to all supported IOMMUs

Suspend/resume support in the OMAP mailbox driver is already supported
in baseline upstream kernel.

* 'iommu-linux-4.19.y' of git://git.ti.com/rpmsg/iommu:
  iommu/omap: introduce new API for runtime suspend/resume control
  iommu/omap: Add system suspend/resume support
  iommu/omap: add logic to save/restore locked TLBs
  iommu/omap: streamline enable/disable through runtime pm callbacks
  ARM: OMAP2+: add pdata-quirks for OMAP3 ISP IOMMU
  ARM: OMAP2+: Add iommu pdata-quirks for DRA7 DSP EDMA MMUs
  ARM: OMAP2+: plug in device_enable/idle ops for IOMMUs
  iommu/omap: add pdata ops for omap_device_enable/idle

Signed-off-by: Suman Anna <s-anna@ti.com>