Convert all selinux/* applets to "new style" applet definitions

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

selinux/matchpathcon.c

@@ -5,6 +5,17 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+//config:config MATCHPATHCON
+//config:	bool "matchpathcon"
+//config:	default n
+//config:	depends on SELINUX
+//config:	help
+//config:	  Enable support to get default security context of the
+//config:	  specified path from the file contexts configuration.
+
+//applet:IF_MATCHPATHCON(APPLET(matchpathcon, BB_DIR_USR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_MATCHPATHCON) += matchpathcon.o
 
 //usage:#define matchpathcon_trivial_usage
 //usage:       "[-n] [-N] [-f file_contexts_file] [-p prefix] [-V]"