tests/int/selinux: fix skip message

It was a mistake to say that SELinux need to be in the enforcing mode
for these tests to run. It only needs to be enabled.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

tests/integration/selinux.bats

@@ -5,7 +5,7 @@ load helpers
 function setup() {
 	requires root # for chcon
 	if ! selinuxenabled; then
-		skip "requires SELinux enabled and in enforcing mode"
+		skip "requires SELinux enabled"
 	fi
 
 	setup_busybox