libbrillo: policy: fix libpolicy unittest

The chrome_device_policy.proto numbering has changed between when CL 31dae17
was written/tested and when it was submitted.
Update the policy_all file with the correct proto numbers, in order to get
PolicyTest.DevicePolicyAllSetTest to pass again.

BUG=chrome-os-partner:50249
TEST=`FEATURES=test emerge-samus libbrillo`

Change-Id: I7b3a89e4355c4e4ed48301413e3f162c7fbc158d
1 file changed