Disable the output of debugging information about unused file systems in Linux kernels

[ZigFisher]

yaffs: dev is 187695105 name is "mmcblk0p1" rw
yaffs: passed flags ""
yaffs: yaffs: Attempting MTD mount of 179.1,"mmcblk0p1"
yaffs: MTD device does not support have the right page sizes
yaffs: dev is 187695105 name is "mmcblk0p1" rw
yaffs: passed flags ""
yaffs: yaffs: Attempting MTD mount of 179.1,"mmcblk0p1"
yaffs: NAND geometry problems: chunk size 1, type is yaffs2, inband_tags 1 
F2FS-fs (mmcblk0p1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (mmcblk0p1): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (mmcblk0p1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (mmcblk0p1): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (mmcblk0p1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (mmcblk0p1): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (mmcblk0p1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (mmcblk0p1): Can't find valid F2FS filesystem in 2th superblock
FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.