Revert "liblog: remove mistakenly added symbols from vndk"

This reverts commit 5f8162b0862cc04fc9d88305c44fde40ae3ea31c.

Reason for revert: Turns out they're being used.

Merged-In: Iad9010190c7a4140b69dc553df5debdd88dcf81a
Change-Id: Iad9010190c7a4140b69dc553df5debdd88dcf81a
9 files changed