cheets: Rename /opt/google/containers/android-sdcard to arc-sdcard

BUG=b:31254747
TEST=test_that cyan platform_FilePerms
CQ-DEPEND=CL:*282999
CQ-DEPEND=CL:*282977

Change-Id: I7c732dd0642f3119bab4d21181425db5b9074cc9
Reviewed-on: https://chromium-review.googlesource.com/379856
Commit-Ready: Yusuke Sato <yusukes@chromium.org>
Tested-by: Yusuke Sato <yusukes@chromium.org>
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
diff --git a/client/site_tests/platform_FilePerms/platform_FilePerms.py b/client/site_tests/platform_FilePerms/platform_FilePerms.py
index 7f11624..4f70ea1 100644
--- a/client/site_tests/platform_FilePerms/platform_FilePerms.py
+++ b/client/site_tests/platform_FilePerms/platform_FilePerms.py
@@ -56,7 +56,7 @@
         '/opt/google/containers/android/rootfs/root/vendor': {
             'type': 'squashfs',
             'options': ['ro', 'nosuid', 'nodev']},
-        '/opt/google/containers/android-sdcard/mountpoints/container-root': {
+        '/opt/google/containers/arc-sdcard/mountpoints/container-root': {
             'type': 'squashfs',
             'options': ['ro', 'noexec']},
         '/opt/google/containers/arc-downloads-filesystem/mountpoints/container-root': {