etc: relocate libpowerman.pc to etc

Problem: libpowerman.pc is in the source directory but it
belongs in etc with other config files.

Move to etc.

configure.ac

@@ -119,7 +119,6 @@ AC_CONFIG_FILES( \
   Makefile \
   examples/powerman_el72.spec \
   src/Makefile \
-  src/powerman/libpowerman.pc \
   src/liblsd/Makefile \
   src/libcommon/Makefile \
   src/powerman/Makefile \
@@ -128,6 +127,7 @@ AC_CONFIG_FILES( \
   src/snmppower/Makefile \
   src/plmpower/Makefile \
   etc/Makefile \
+  etc/libpowerman.pc \
   etc/powerman.service \
   etc/tmpfiles.d/powerman.conf \
   heartbeat/Makefile \

etc/Makefile.am

@@ -4,6 +4,10 @@ systemdtmpdir_ddir = ${prefix}/lib/tmpfiles.d
 systemdtmpdir_d_DATA = tmpfiles.d/powerman.conf
 endif
 
+if WITH_PKG_CONFIG
+pkgconfig_DATA = libpowerman.pc
+endif
+
 pkgsysconfdir = $(sysconfdir)/powerman
 
 pkgsysconf_DATA = \

src/powerman/Makefile.am

@@ -70,7 +70,3 @@ CLEANFILES = \
 
 libpowerman_la_SOURCES = \
 	libpowerman.c
-
-if WITH_PKG_CONFIG
-pkgconfig_DATA = libpowerman.pc
-endif