Include loolwsd.service and sysconfig.loolwsd in the tarball

(Instead of having them as separate SOURCEn in the loolwsd.spec.)

Both are related to systemd. The latter probably is relevant only for
openSUSE. (And I actually couldn't get what I tried doing in it to work, see
739edf9dcf464f407dfe663fb2f497b866e73333.)
(cherry picked from commit f8b29d666d52a3f18b0125aaed309fa3e4d719fb)

loolwsd/Makefile.am

@@ -17,6 +17,8 @@ noinst_HEADERS = LOKitHelper.hpp LOOLProtocol.hpp LOOLSession.hpp LOOLWSD.hpp Lo
                  bundled/include/LibreOfficeKit/LibreOfficeKit.h bundled/include/LibreOfficeKit/LibreOfficeKitEnums.h \
                  bundled/include/LibreOfficeKit/LibreOfficeKitInit.h bundled/include/LibreOfficeKit/LibreOfficeKitTypes.h
 
+EXTRA_DIST = loolwsd.service sysconfig.loolwsd
+
 clean-cache:
 # Intentionally don't use "*" below... Avoid risk of accidentally running rm -rf /*
 	test -n "@LOOLWSD_CACHEDIR@" && rm -rf "@LOOLWSD_CACHEDIR@"/[0-9a-f]

loolwsd/loolwsd.spec.in

@@ -22,8 +22,6 @@ Vendor:         Collabora
 Summary:        LibreOffice On-Line WebSocket Daemon
 License:        MPL
 Source0:        loolwsd-@PACKAGE_VERSION@.tar.gz
-Source1:        loolwsd.service
-Source2:        sysconfig.loolwsd
 BuildRequires:  libcap-progs libcap-devel libpng-devel poco-devel >= 1.6.0 systemd-rpm-macros
 # This works for now only with a CP build of 5.0, I think. The TDF
 # (and thus also CP) packages include the version number in their
@@ -48,9 +46,9 @@ env BUILDING_FROM_RPMBUILD=yes make check
 
 %install
 env BUILDING_FROM_RPMBUILD=yes make install DESTDIR=%{buildroot}
-%__install -D -m 444 %{SOURCE1} %{buildroot}%{_unitdir}/loolwsd.service
+%__install -D -m 444 loolwsd.service %{buildroot}%{_unitdir}/loolwsd.service
 install -d -m 755 %{buildroot}/var/adm/fillup-templates
-install -D -m 644 %{SOURCE2} %{buildroot}/var/adm/fillup-templates
+install -D -m 644 sysconfig.loolwsd %{buildroot}/var/adm/fillup-templates
 
 %files
 /usr/bin/loolwsd