[Yaffs] the yaffs2 patch for linux-3.14.6 kernel

Hi! I try to install the yaffs2 to the lastest kernel, but the kernel compliation failed! I fix it and test in kernel 3.14.6.
The patch fixes the following issues in file:1. the typedef of kuid_t and kgid_t is removed from the kernel 3.14.
2. file_operations.readdir is removed from the kernel 3.11; use file_operations.iterator instead.
3. create_proc_entry, proc_dir_entry.write_proc and proc_dir_entry.read_proc is removed from the kernel 3.10; use proc_create and file_operations instead.
4. MTD_BOLCK_MAJOR is moved from linux/mtd/mtd.h to include/uapi/linux/major.h after the kernel 3.13.