configstore: configstore HAL is up-revisioned to 1.1

This change provides a reference implementation of the configstore HAL
v1.1.

Bug: 37727469
Test: Built sailfish-userdebug and configstore-1.1 works
Change-Id: I75e7fd1da8e90ae48d779a3ba28957c5a93a5529
13 files changed