close: #I5OYYA
Signed-off-by: Narvinzzz <zhaotianyu9@huawei.com>
Change-Id: Ibff61316dacd2d685471def2350ca97768ed322c

1. f_mkfs接口增强，现在除了簇大小，同时支持fat表数量，数据区对齐大小，根目录大小的设置。
2. 抽象部分内部接口find_volume/create_partition，提高代码复用度。
3. 修复一些bug。
Signed-off-by: NFar <yesiyuan2@huawei.com>

Signed-off-by: NLeon Chan <chenwei26@huawei.com>

Liteos_a FATFS需要提供格式化时设置卷标的功能，该功能在当前系统中缺失。
为了适配VFS层重构的逻辑，重新封装部分函数。

Close #I3Y5G8
Signed-off-by: NFar <yesiyuan2@huawei.com>

1.remove redundant headfile in kernel, such as:
  compiler.h;debug.h;automount.h;inode.h;syslog.h;net.h;
2.split fs.h to file.h and driver.h
3.move vnode.h and path_cache.h to vfs/include
4.remove redundant interface and defines

close: #I3RTNR
Signed-off-by: Nmucor <mucorwang@gmail.com>

利用fatfs目录项中的保留字段，作为符号链接的标识符。

close #I3V8D1
Signed-off-by: Nchenjing <chenjing139@huawei.com>
Change-Id: I69fc4c668ed8377364dddd9bd28ebeef100d9b14

FAT12/FAT16 partition has no FSINFO sector storing the free cluster number,
so scanning the FAT is necessary to get the free clusters nums.

Close #I3Q0VS

Change-Id: Iae871ce706bef622350954601de615c7b79046a5

Bug: #I3J1IC
Test:

1. Before formating, user los_disk_cache_clear to clear the Bcache;
2. FATFS readdir use dir_read_massive to use the Bcache write block to improve readdir performance

Change-Id: I2820b86f533377b40b823e45e5c8734e8f115c7f

Feature or Bugfix:Feature
Binary Source:Huawei
PrivateCode(Yes/No):Yes

Change-Id: I175d2648bc6f9078c34de2c0a5c93fda10b86c47
ChangeID:13306396

Reviewed-by: shenwei