Merge branch 'renesas-r8a7740' into renesas-armadillo

* renesas-r8a7740:
  ARM: shmobile: use common DMAEngine definitions on r8a7740
  ARM: shmobile: r8a7740: add DMAEngine support for USB
  ARM: shmobile: r8a7740: add DMAEngine support for SDHI
  ARM: shmobile: r8a7740: add DMAEngine support for FSI
  ARM: shmobile: add common DMAEngine definitions
  ARM: shmobile: add common extra gpio functions