Merge tag 'android-6.0.1_r3' into 601r3

Android 6.0.1 release 3

* tag 'android-6.0.1_r3':
  Limit maximum number of concurrent keystore operations.
  Fix failure to save master key on new profile

Change-Id: Iec52f582e6e5f05adcc93004d2a53f9afe583ffc
tree: 6f5cc49958abade0083f95bd067c18b169504ed5
  1. keystore/
  2. keystore-engine/
  3. softkeymaster/