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

- Turris MOX and Omnia changes, mostly moving to Kconfig (Marek)
- a37xx: pci: Misc smaller fixes (Pali)
- cmd: tlv_eeprom: Fix building with DEBUG enabled (Sven)
- termios_linux.h: Fix tcsendbreak() implementation (Pali)
- mvebu: Add missing "if SPL" (Tom)