Fix Auto click (dwell timing) the checked option isn't the same as the option...

Fix Auto click (dwell timing) the checked option isn't the same as the option before upgrading the OS

Root cause:
After OS upgrade to R, the original logic only check SP key but does not consider the setting enabled key to cause it cannot not show correctly.

Next:
1) accessibility_autoclick_enabled=1 but does not have SP key, customize layout is checked and show the right value
2) accessibility_autoclick_enabled=1 and have SP key, show according items is checked
3) accessibility_autoclick_enabled=0, off button is checked

Bug: 151123423
Test: local test
Change-Id: I9ebcbb35ee0071dbf8c969d0a70ea6293f4c6edb