Merge tag 'spi-nor/for-5.1' of git://git.infradead.org/linux-mtd into mtd/next

SPI NOR Changes
  Core changes:
  - Add support of octal mode I/O transfer
  - Add a bunch of SPI NOR entries to the flash_info table

  SPI NOR controller driver changes:
  - cadence-quadspi:
    * Add support for Octal SPI controller
    * write upto 8-bytes data in STIG mode
  - mtk-quadspi:
    * rename config to a common one
    * add SNOR_HWCAPS_READ to spi_nor_hwcaps mask

MAINTAINERS:
- Add Tudor as SPI-NOR co-maintainer