kernel: adapt to kernel above 6.4 (#1196)

Above kernel 6.4, there is no struct_avc member in selinux_state.

kernel/selinux/rules.c

@@ -177,7 +177,8 @@ static int get_object(char *buf, char __user *user_object, size_t buf_sz,
 // reset avc cache table, otherwise the new rules will not take effect if already denied
 static void reset_avc_cache()
 {
-#ifndef KSU_COMPAT_USE_SELINUX_STATE
+#if ((!defined(KSU_COMPAT_USE_SELINUX_STATE)) || \
+        LINUX_VERSION_CODE >= KERNEL_VERSION(6, 4, 0))
 	avc_ss_reset(0);
 	selnl_notify_policyload(0);
 	selinux_status_update_policyload(0);