package/ntp: use common sysv init install

Previously the sysv init script install was conditional based on ntpd
being selected, now that sntp also has an init script and could be
selected independent of ntpd, a common install is necessary.

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/ntp/ntp.mk

@@ -102,9 +102,8 @@ endef
 endif
 
 ifeq ($(BR2_PACKAGE_NTP_NTPD),y)
-define NTP_INSTALL_INIT_SYSV
+define NTP_INSTALL_INIT_SYSV_NTPD
 	$(INSTALL) -D -m 755 package/ntp/S49ntp $(TARGET_DIR)/etc/init.d/S49ntp
-	$(NTP_INSTALL_INIT_SYSV_SNTP)
 endef
 
 define NTP_INSTALL_INIT_SYSTEMD
@@ -115,4 +114,9 @@ define NTP_INSTALL_INIT_SYSTEMD
 endef
 endif
 
+define NTP_INSTALL_INIT_SYSV
+	$(NTP_INSTALL_INIT_SYSV_NTPD)
+	$(NTP_INSTALL_INIT_SYSV_SNTP)
+endef
+
 $(eval $(autotools-package))