Improve app op details layout.

Change-Id: I38a2c3679633ae85aec61703ab933410775bb336
Save last list position in privacy guard manager.

Change-Id: If04fd42b1a50059996d2a002f0c2451c3cdf82a4
Merge "Improve app op details layout." into cm-10.2
Merge "Save last list position in privacy guard manager." into cm-10.2