beckham: AOD: Decouple suspend from screen state

Allows the device to suspend even when the screen is on.

Bug: 36780767
Test: make droid && adb shell dumpsys power | grep mDecoupleHalAutoSuspendModeFromDisplayConfig; verify it's true
Change-Id: If3c9aa7130d91e96354483c672f153cc0636e70d

overlay/frameworks/base/core/res/res/values/config.xml

@@ -29,4 +29,7 @@
          devices where the display has be tuned to be power efficient in DOZE and/or DOZE_SUSPEND
          states. -->
     <bool name="config_dozeAlwaysOnDisplayAvailable">true</bool>
+
+    <!-- Specifies whether to decouple the auto-suspend state of the device from the display on/off state. -->
+    <bool name="config_powerDecoupleAutoSuspendModeFromDisplay">true</bool>
 </resources>