qcom/common: Added O_NOFOLLOW to avoid follow the symlink

open system call is added with NOFOLLOW flag

Change-Id: I402643635e3ee11b3ac5df63c3b71a9fd6f0d2db
Merge pull request #2 from CyanogenMod/cm-11.0

qcom/common: Added O_NOFOLLOW to avoid follow the symlink