支持互斥锁强壮性标志，添加加解锁函数对robust链表的处理

Change-Id: Idef4e0de44d7fac0a7ef293ebb570d7641623e27

musl c is not ready for replacement of toolchain's libc, we comment
out some conflict functions temporary.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Ifd5e7aa39fd18db5b8c68f24791e9dcb706e257d

add BUILD.gn for liteos_m kernel portings.
add new posix api: htonl, htons, ntohl, ntohs
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I3581032659bdc68e98a9470050549faf9f8cbcbb

【背景】
 arm none eabi编译器适配

【修改方案】
 增加编译宏

 re #I3WVXZ
Signed-off-by: Nx_xiny <1301913191@qq.com>

 Change-Id: I834395ba5aeb0a4caeb642ac2fbf4553c30ac3f0

 Change-Id: Ifffd2b7fb3319e8b4a243acdc973e1a36a357e5d

Change-Id: Iefdfdeb5c42c623289185725c2c7e5d64da1159c

由于srand设置时间种子时未使用入参，导致时间种子设置失败，
引发rand生成随机端口固定

close: #I3V8WS
Signed-off-by: Nzff <zhangfanfan2@huawei.com>
Change-Id: Idabed287fa7584ae9c6f2cc966afa35032e24a70

isolate changes, keep orignal musl sources clean.
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: Id7f3a5109771f93d397e30febba36e09ddaf4f36