live555: fix test programs target installation

Commit 43ebd93e1fcb (live555: add error handling to for loop) removed the
shell command delimiter. Add it back.

Fixes:
http://autobuild.buildroot.net/results/00f/00f26fa3b6fc8c707009f44ede7b680849f18d5f/

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/live555/live555.mk

@@ -55,7 +55,7 @@ endef
 
 define LIVE555_INSTALL_TARGET_CMDS
 	for i in $(LIVE555_FILES_TO_INSTALL-y); do \
-		$(INSTALL) -D -m 0755 $(@D)/$$i $(TARGET_DIR)/usr/bin/`basename $$i` || exit 1 \
+		$(INSTALL) -D -m 0755 $(@D)/$$i $(TARGET_DIR)/usr/bin/`basename $$i` || exit 1; \
 	done
 endef