Merge branch 'rproc-linux-4.1.y' of git://git.ti.com/rpmsg/remoteproc into rpmsg-ti-linux-4.1.y

Pull in the updated remoteproc feature branch that includes the
suspend/resume functionality in the OMAP mailbox driver.

* 'rproc-linux-4.1.y' of git://git.ti.com/rpmsg/remoteproc

:
  mailbox/omap: check for any unread messages during suspend
  mailbox/omap: add support for suspend/resume
  mailbox/omap: store mailbox interrupt type in omap_mbox_device

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