Merge https://gitlab.denx.de/u-boot/custodians/u-boot-marvell

- mvebu: Add Armada 38x pin muxing support (Pali)
- a37xx: pinctrl: Fix requesting GPIOs and pinmux command (Pali)
- mvebu: pinctrl: apply SDHCI PHY config for A7K (Kosta)
- gpio: Add Turris Omnia MCU driver (Pali)
- cmd: mvebu/bubt: Improvements for image verification (Pali)
- mvebu: turris_omnia: Fix mpp26 pin name and comment (Marek)