Help on issue #8863955: Google Services keeping phone awake...

...because of Google Play Services

Raise the limit on the number of wake locks we track per uid.

Get rid of the separate limit for the system process, since it
now isn't any larger than the new limit for regular processes.

Change-Id: Ic10c81cad7d4ad4aabf1f53f78191a0973a1d784