generic: fold yaffs_git_2010_10_20 patch to generic/files

target/linux/generic/files/fs/yaffs2/Kconfig

target/linux/generic/files/fs/yaffs2/Makefile

target/linux/generic/files/fs/yaffs2/NOTE.openwrt

target/linux/generic/files/fs/yaffs2/devextras.h

target/linux/generic/files/fs/yaffs2/moduleconfig.h

target/linux/generic/files/fs/yaffs2/yaffs_allocator.c

target/linux/generic/files/fs/yaffs2/yaffs_allocator.h

target/linux/generic/files/fs/yaffs2/yaffs_bitmap.c

target/linux/generic/files/fs/yaffs2/yaffs_bitmap.h

target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.c

target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.h

target/linux/generic/files/fs/yaffs2/yaffs_ecc.c

target/linux/generic/files/fs/yaffs2/yaffs_ecc.h

target/linux/generic/files/fs/yaffs2/yaffs_getblockinfo.h

target/linux/generic/files/fs/yaffs2/yaffs_guts.c

target/linux/generic/files/fs/yaffs2/yaffs_guts.h

target/linux/generic/files/fs/yaffs2/yaffs_linux.h

target/linux/generic/files/fs/yaffs2/yaffs_linux_allocator.c

target/linux/generic/files/fs/yaffs2/yaffs_list.h

target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c