systemd: Update service files according to D-Bus interface version

systemd service files were supplied with old D-Bus bus name. After
service activation systemd was waiting for appearance of specified bus
name to consider it started successfully. However, if wpa_supplicant was
compiled only with the new D-Bus interface name, systemd didn't notice
configured (old) D-Bus bus name appearance. In the end, service was
considered malfunctioning and it was deactivated.

Update systemd service BusName property according to supported D-Bus
interface version.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>

wpa_supplicant/Makefile

@@ -1384,6 +1384,7 @@ ifndef DBUS_INCLUDE
 DBUS_INCLUDE := $(shell $(PKG_CONFIG) --cflags dbus-1)
 endif
 DBUS_CFLAGS += $(DBUS_INCLUDE)
+DBUS_INTERFACE=fi.epitest.hostap.WPASupplicant
 endif
 
 ifdef CONFIG_CTRL_IFACE_DBUS_NEW
@@ -1409,6 +1410,7 @@ DBUS_OBJS += dbus/dbus_new_introspect.o
 DBUS_CFLAGS += -DCONFIG_CTRL_IFACE_DBUS_INTRO
 endif
 DBUS_CFLAGS += $(DBUS_INCLUDE)
+DBUS_INTERFACE=fi.w1.wpa_supplicant1
 endif
 
 ifdef DBUS
@@ -1771,11 +1773,13 @@ else
 endif
 
 %.service: %.service.in
-	$(Q)sed -e 's|\@BINDIR\@|$(BINDIR)|g' $< >$@
+	$(Q)sed -e 's|\@BINDIR\@|$(BINDIR)|g' \
+		-e 's|\@DBUS_INTERFACE\@|$(DBUS_INTERFACE)|g' $< >$@
 	@$(E) "  sed" $<
 
 %@.service: %.service.arg.in
-	$(Q)sed -e 's|\@BINDIR\@|$(BINDIR)|g' $< >$@
+	$(Q)sed -e 's|\@BINDIR\@|$(BINDIR)|g' \
+		-e 's|\@DBUS_INTERFACE\@|$(DBUS_INTERFACE)|g' $< >$@
 	@$(E) "  sed" $<
 
 wpa_supplicant.exe: wpa_supplicant

wpa_supplicant/systemd/wpa_supplicant.service.in

@@ -5,9 +5,9 @@ Wants=network.target
 
 [Service]
 Type=dbus
-BusName=fi.epitest.hostap.WPASupplicant
+BusName=@DBUS_INTERFACE@
 ExecStart=@BINDIR@/wpa_supplicant -u
 
 [Install]
 WantedBy=multi-user.target
-Alias=dbus-fi.epitest.hostap.WPASupplicant.service
+Alias=dbus-@DBUS_INTERFACE@.service