【背景】FreeBSD升级12.2版本

【修改方案】
 FreeBSD升级12.2版本
Signed-off-by: Nxuiny <xuxinyu6@huawei.com>
Change-Id: I40826e7dac67cf664588a3d90f8d7502c2efaeb4

Signed-off-by: Nwu-chengwen <wuchengwen4@huawei.com>

    删除无用代码逻辑
Close #I4IEG2
Signed-off-by: Nzhushengle <zhushengle@huawei.com>
Change-Id: I13cb65f863672dc9ba9b2be03dda2175cece0bab

Signed-off-by: Nyuanbo <yuanbo@huawei.com>

OsGetCpuCycle为内核内部函数，编译时会报符号链接错误
修改为使用内核的公开API接口LOS_GetCpuCycle
Signed-off-by: Nlaokz <laokz@foxmail.com>
Change-Id: I978f426eb442a3dcb32abf54645633d7a0195d20

Signed-off-by: Nzianed <houxuanzhe@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>

1. 修复了一个可能的对NULL指针解引用的场景
2. 修复了一个使用未初始化变量的场景

Close #I3UOFN
Signed-off-by: NFar <yesiyuan2@huawei.com>

Close #I3S5W4

Change-Id: Iba7054a8abbcc5545c783a06411312c7a1c6075e

close: #I3I768
Change-Id: Icf321cf346d24c55262bfd082b0fe6cb16deb0b3

Change-Id: I6fe510d232d6c8c9c11102f4e0cd7d405368ac64

Change-Id: I1e77c79a30d53920c9686bab130550c8a6eee266

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

Change-Id: I175d2648bc6f9078c34de2c0a5c93fda10b86c47
ChangeID:13306404