[PATCH 1/2] fcntl: fix typo in RWH_WRITE_LIFE_NOT_SET r/w hint

According to commit message in the original commit v4.13-rc1~212^2~51, as well as userspace library[1] and man page update[2], R/W hint constants are intended to have RWH_* prefix. However, RWF_WRITE_LIFE_NOT_SET retained "RWF_*" prefix used in earlyy versions of the proposed patch set[3]. Rename

[PATCH 1/2] fcntl: fix typo in RWH_WRITE_LIFE_NOT_SET r/w hint

According to commit message in the original commit v4.13-rc1~212^2~51, as well as userspace library[1] and man page update[2], R/W hint constants are intended to have RWH_* prefix. However, RWF_WRITE_LIFE_NOT_SET retained "RWF_*" prefix used in earlyy versions of the proposed patch set[3]. Rename