osmo-bts: Config file in 'stable' version is still in different path

The recent updates to the osmo-bts recipe broke the 'stable' version
as the config file is still in doc/examples/ and not doc/examples/sysmo

recipes-sysmobts/osmo-bts/osmo-bts_git.bb

@@ -57,7 +57,7 @@ do_install_append() {
 do_install_append_sysmobts-v2() {
 	install -m 0755 ${S}/contrib/sysmobts-calib/sysmobts-calib ${D}${bindir}/
 
-	install -m 0660 ${S}/doc/examples/sysmo/osmo-bts.cfg ${D}${sysconfdir}/osmocom
+	install -m 0660 ${S}/doc/examples/osmo-bts.cfg ${D}${sysconfdir}/osmocom
 
 	# Install systemd and enable on sysinit
 	install -d ${D}${systemd_unitdir}/system/multi-user.target.wants/