hikey960: Enable selinux enforcing mode

Change-Id: I5705a281232b2a19e4f727704ed8d0b29d65a277
Signed-off-by: Vishal Bhoj <vishal.bhoj@linaro.org>
diff --git a/hikey960/BoardConfig.mk b/hikey960/BoardConfig.mk
index 94631c2..aa88903 100644
--- a/hikey960/BoardConfig.mk
+++ b/hikey960/BoardConfig.mk
@@ -4,7 +4,7 @@
 
 TARGET_NO_DTIMAGE := false
 
-BOARD_KERNEL_CMDLINE := androidboot.hardware=hikey960 androidboot.selinux=permissive
+BOARD_KERNEL_CMDLINE := androidboot.hardware=hikey960
 BOARD_KERNEL_CMDLINE += firmware_class.path=/system/etc/firmware loglevel=15
 BOARD_MKBOOTIMG_ARGS := --base 0x0 --tags_offset 0x07a00000 --kernel_offset 0x00080000 --ramdisk_offset 0x07c00000