Pull ARC fixes from Vineet Gupta:
 "Another batch of fixes for ARC, this time mainly DMA API rework
  wreckage:

   - Fix software managed DMA wreckage after rework in 4.17 [Euginey]
      * missing cache flush
      * SMP_CACHE_BYTES vs cache_line_size

   - Fix allmodconfig build errors [Randy]

   - Maintainer update for Mellanox (EZChip) NPS platform"

* tag 'arc-4.18-final' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  arc: fix type warnings in arc/mm/cache.c
  arc: fix build errors in arc/include/asm/delay.h
  arc: [plat-eznps] fix printk warning in arc/plat-eznps/mtm.c
  arc: [plat-eznps] fix data type errors in platform headers
  ARC: [plat-eznps] Add missing struct nps_host_reg_aux_dpc
  ARC: add SMP_CACHE_BYTES value validate
  ARC: dma [non-IOC] setup SMP_CACHE_BYTES and cache_line_size
  ARC: dma [non IOC]: fix arc_dma_sync_single_for_(device|cpu)
  ARC: Add Ofer Levi as plat-eznps maintainer