Pull UBI and UBIFS updates from Richard Weinberger:
 "UBI:
   - Add Zhihao Cheng as reviewer
   - Attach via device tree
   - Add NVMEM layer
   - Various fastmap related fixes

  UBIFS:
   - Add Zhihao Cheng as reviewer
   - Convert to folios
   - Various fixes (memory leaks in error paths, function prototypes)"

* tag 'ubifs-for-linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: (34 commits)
  mtd: ubi: fix NVMEM over UBI volumes on 32-bit systems
  mtd: ubi: provide NVMEM layer over UBI volumes
  mtd: ubi: populate ubi volume fwnode
  mtd: ubi: introduce pre-removal notification for UBI volumes
  mtd: ubi: attach from device tree
  mtd: ubi: block: use notifier to create ubiblock from parameter
  dt-bindings: mtd: ubi-volume: allow UBI volumes to provide NVMEM
  dt-bindings: mtd: add basic bindings for UBI
  ubifs: Queue up space reservation tasks if retrying many times
  ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path
  ubifs: dbg_check_idx_size: Fix kmemleak if loading znode failed
  ubi: Correct the number of PEBs after a volume resize failure
  ubi: fix slab-out-of-bounds in ubi_eba_get_ldesc+0xfb/0x130
  ubi: correct the calculation of fastmap size
  ubifs: Remove unreachable code in dbg_check_ltab_lnum
  ubifs: fix function pointer cast warnings
  ubifs: fix sort function prototype
  ubi: Check for too small LEB size in VTBL code
  MAINTAINERS: Add Zhihao Cheng as UBI/UBIFS reviewer
  ubifs: Convert populate_page() to take a folio
  ...