sepolicy: treat fuseblk as sdcard_external

Allow fuse-mounted NTFS/exFAT file systems to be written to

Change-Id: I1492914dd269a305e27aba58e61064d853adf2bc
diff --git a/common/private/file.te b/common/private/file.te
new file mode 100644
index 0000000..ea6af04
--- /dev/null
+++ b/common/private/file.te
@@ -0,0 +1,2 @@
+# Filesystems
+type fuseblk, sdcard_type, fs_type, mlstrustedobject;
diff --git a/common/private/genfs_contexts b/common/private/genfs_contexts
new file mode 100644
index 0000000..6152690
--- /dev/null
+++ b/common/private/genfs_contexts
@@ -0,0 +1 @@
+genfscon fuseblk / u:object_r:fuseblk:s0