Fix up logd make file rules

logd, the init.recovery.logd.rc, and other related files were
included by default if your device configs specified
TARGET_USES_LOGD := true which would be the case for any device
that has a full ROM tree instead of a minimal TWRP tree.

Change-Id: Ia1e55703631f0f22beab2f4d4479599b88539e1a