Merge tag 'u-boot-nand-20230417' of https://source.denx.de/u-boot/custodians/u-boot-nand-flash

Pull request for u-boot-nand-20230417

The first two patches are by Frieder Schrempf who joins as a reviewer for
the SPI NAND framework and drivers.

The following 2 patches are by Linus Walleij and are taken by the series
"Add Broadcom Northstar basic support".

Bin Meng makes static a list for octeontx.

Francesco Dolcini specifies MTD partitions on command line for
colibri-{imx6ull,imx7}.