Change arc-camera UID/GID to 603

All the UID/GID shared between android container and CrOS are in the
6xx range.

BUG=b:26311820
TEST=Verified that /etc/{passwd,group} on device has reflected the change.
CQ-DEPEND=CL:321561

Change-Id: I1d2d6df1a913ed763e7ac21c0655e37941c42478
Reviewed-on: https://chromium-review.googlesource.com/321542
Commit-Ready: Sheng-hao Tsao <shenghao@google.com>
Tested-by: Sheng-hao Tsao <shenghao@google.com>
Reviewed-by: Wu-cheng Li <wuchengli@chromium.org>
diff --git a/profiles/base/accounts/group/arc-camera b/profiles/base/accounts/group/arc-camera
index 4a0c068..6f529a6 100644
--- a/profiles/base/accounts/group/arc-camera
+++ b/profiles/base/accounts/group/arc-camera
@@ -1,3 +1,3 @@
 group:arc-camera
-gid:274
+gid:603
 users:
diff --git a/profiles/base/accounts/user/arc-camera b/profiles/base/accounts/user/arc-camera
index 851ff7e..69ddedc 100644
--- a/profiles/base/accounts/user/arc-camera
+++ b/profiles/base/accounts/user/arc-camera
@@ -1,6 +1,6 @@
 user:arc-camera
-uid:274
-gid:274
+uid:603
+gid:603
 gecos:CrOS ARC camera service daemon
 home:/dev/null
 shell:/bin/false