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

- mvebu: Support for 98DX25xx/98DX35xx (AlleyCat5) (Chris)
- Makefile: Rename u-boot-spl.kwb to u-boot-with-spl.kwb (Pali)
- armada: dts: Add clock to armada-ap80x uart1 (Hamish)