[2513] Move libdhcpsrv.dox to the dhcpsrv directory

src/lib/dhcp/Makefile.am

@@ -40,7 +40,7 @@ libb10_dhcp___la_LIBADD   = $(top_builddir)/src/lib/asiolink/libb10-asiolink.la
 libb10_dhcp___la_LIBADD  += $(top_builddir)/src/lib/util/libb10-util.la
 libb10_dhcp___la_LDFLAGS  = -no-undefined -version-info 2:0:0
 
-EXTRA_DIST  = README
+EXTRA_DIST  = README libdhcp++.dox
 
 if USE_CLANGPP
 # Disable unused parameter warning caused by some of the

src/lib/dhcpsrv/Makefile.am

@@ -48,5 +48,5 @@ libb10_dhcpsrv_la_CXXFLAGS += -Wno-unused-parameter
 endif
 
 # Distribute MySQL schema creation script and backend documentation
-EXTRA_DIST = dhcpdb_create.mysql database_backends.dox
+EXTRA_DIST = dhcpdb_create.mysql database_backends.dox libdhcpsrv.dox
 dist_pkgdata_DATA = dhcpdb_create.mysql