Merge tag 'stm32-dt-for-v4.17-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into next/dt

Pull "STM32 DT updates for v4.17, round 1" from Alexandre Torgue:

Highlights:
-----------
 -Add support of STM32MP157 MPU and stm32mp157c eval board
 -Add SD supports on F4 and F7 boards
 -Add leds support on stm32f469 and stm32f769 disco boards
 -Add push button support on stm32f469 and stm32f769 disco boards
 -Add EXTI, SPI, RTC, USB HS/FS support on STM32H743 MCU
 -Add RTC and USB OTG HS on stm32f769-disco
 -Use dedicated files for F7 pinctrl

* tag 'stm32-dt-for-v4.17-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: (34 commits)
  ARM: dts: stm32: Fix sdio2 rcc hard coded value
  dt-bindings: mfd: Add STM32F7 SDMMC2 rcc entry
  ARM: dts: stm32: Enable sdio1 for stm32f769-disco
  ARM: dts: stm32: Enable sdio1 for stm32f746-eval
  ARM: dts: stm32: Enable sdio1 for stm32f746-disco
  ARM: dts: stm32: Add sdio pins definition for stm32f7
  ARM: dts: stm32: add SPI support on STM32H743 SoC
  ARM: dts: stm32: enable RTC on stm32h743i-eval
  ARM: dts: stm32: add RTC support on STM32H743
  ARM: dts: stm32: enable USB OTG HS on stm32h743i-eval
  ARM: dts: stm32: add USB OTG HS and FS support for STM32H743 SoC
  ARM: dts: stm32: enable RTC on stm32f769-disco
  ARM: dts: stm32: enable USB HS on stm32f769-disco
  ARM: dts: stm32: select otg mode for usbotg_hs on stm32746g_eval
  ARM: dts: stm32: add gadget fifo sizes to usbotg_hs on stm32f746
  ARM: dts: stm32: Add push button to stm32f769 Discovery board
  ARM: dts: stm32: Add push button to stm32f469 Discovery board
  ARM: dts: stm32: Add leds support to stm32f769 Discovery board
  ARM: dts: stm32: Add leds support to stm32f469 Discovery board
  ARM: dts: stm32: Fix HSE clock frequency for stm32h743i-disco board
  ...