Merge branch '2019-10-27-mtd-cleanup'

Makefile

arch/arm/Kconfig

arch/arm/mach-imx/Kconfig

arch/arm/mach-imx/cmd_nandbcb.c

arch/arm/mach-omap2/mem-common.c

board/BuR/brppt1/board.c

board/BuR/brppt1/mux.c

board/birdland/bav335x/board.c

board/bosch/guardian/board.c

board/bosch/guardian/mux.c

board/bosch/shc/board.c

board/freescale/ls2080aqds/ls2080aqds.c

board/freescale/t102xrdb/t102xrdb.c

board/imgtec/ci20/ci20.c

board/phytec/pcm051/mux.c

board/phytec/phycore_am335x_r2/mux.c

board/siemens/pxm2/mux.c

board/sunxi/README.nand

board/ti/am335x/board.c

board/ti/am335x/mux.c