TT#49106 Clean up PHONY targets

Remove duplicated install target, add with-kernel.

Change-Id: I616f537ee4b28c3b0b71efe97ef778791a2abf64

Makefile

@@ -10,6 +10,8 @@ all:
 	$(MAKE) -C iptables-extension
 	$(MAKE) -C t
 
+.PHONY: with-kernel
+
 with-kernel: all
 	$(MAKE) -C kernel-module
 

lib/common.Makefile

@@ -53,4 +53,4 @@ fix_frame_channel_layout.h:	../lib/fix_frame_channel_layout-*
 	rm -f fix_frame_channel_layout-test.[co]; \
 	test -f "$@"
 
-.PHONY: all debug dep clean install install
+.PHONY: all debug dep clean install