Merge tag 'spi-nor/for-4.18' of git://git.infradead.org/linux-mtd into mtd/next

Core changes:
- Add support for a bunch of SPI NOR chips
- Clear EAR reg when switching to 3-byte addressing mode on Winbond
  chips

SPI NOR controller driver changes:
- cadence: Add DMA support for direct mode reads
- hisi: Prefix a few functions with hisi_
- intel:
  * Mark the driver as "dangerous" in Kconfig
  * Fix atomic sequence handling
  * Pass a 40us delay (instead of 0us) to readl_poll_timeout()
- fsl:
  * fix a typo in a function name
  * add support for IP variants embedded in the ls2080a and ls1080a
    SoCs
- stm32: request exclusive control of the reset line