Update policy version to enable ioctl whitelisting

Bug: 20756547
Bug: 18087110
Change-Id: I9ff76f1cf359e38c19d7b50a5b7236fd673d937e

Android.mk

@@ -5,7 +5,7 @@ include $(CLEAR_VARS)
 # SELinux policy version.
 # Must be <= /sys/fs/selinux/policyvers reported by the Android kernel.
 # Must be within the compatibility range reported by checkpolicy -V.
-POLICYVERS ?= 26
+POLICYVERS ?= 30
 
 MLS_SENS=1
 MLS_CATS=1024