Fix ResTable_config::CONFIG_* typo (MCC vs MNC)

In commit 08d5b8f, the ResTable_config::CONFIG_* enum was incorrectly
changed to assign the same value to both CONFIG_MCC and CONFIG_MNC:
    - CONFIG_MCC = 0x0001,
    - CONFIG_MNC = 0x0002,
    + CONFIG_MCC = ACONFIGURATION_MCC,
    + CONFIG_MNC = ACONFIGURATION_MCC,

This commit assigns CONFIG_MNC the value ACONFIGURATION_MNC, as
intended.

Change-Id: I3b8799914a55debdb3ff30a82ada7ad990c49970
Revert "SystemUI: Ignore lint check ProtectedPermissions"

This reverts commit f511ffa756c349191574de7a8b37aa13e1869450.
Re-initialize error after attach

If flag for error after attach is not reinitialized, it may cause
NullPointerException on subsequent onAttachedWindow if error text
was reset to null.

Change-Id: I8976c28a6ca71017e5c4b3f29d4eeeb2eda48c38
Remove unnecessary updateSurfaceScreenOn call.

This change stops updateSurfaceScreenOn() from being called one time
right after another. It's called at the end of stayAwake(boolean awake),
which is called right before updateSurfaceScreenOn() in release().