Sane ownership/permissions for directories in /data/nativetest{,64}.

This makes native test directories 750 root:shell. This matches the
value for files within those directories, and results in a more usable
access paradigm when (say) unprivileged test tools need to discover
these test binaries.

Bug: 25668833
Change-Id: I9bd2081b2c211b4383b5873238aaf64597756714
diff --git a/libcutils/fs_config.c b/libcutils/fs_config.c
index 2a178aa..7028b63 100644
--- a/libcutils/fs_config.c
+++ b/libcutils/fs_config.c
@@ -88,6 +88,8 @@
     { 00771, AID_SHARED_RELRO, AID_SHARED_RELRO, 0, "data/misc/shared_relro" },
     { 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media" },
     { 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media/Music" },
+    { 00750, AID_ROOT,   AID_SHELL,  0, "data/nativetest" },
+    { 00750, AID_ROOT,   AID_SHELL,  0, "data/nativetest64" },
     { 00771, AID_SYSTEM, AID_SYSTEM, 0, "data" },
     { 00755, AID_ROOT,   AID_SYSTEM, 0, "mnt" },
     { 00755, AID_ROOT,   AID_ROOT,   0, "root" },