Install the configured PmLogLib.h

The previous commit added configuration for the header file, but does
not install the resulting file.

[GF-3771] pmloglib: Parse multiple configuration files

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>

Change-Id: Id86f3f10bbb0b6c6505a0cdd4505ab3d40b4bb4e