AOD: Implement long press gesture to launch assist

Bug: 37684244
Test: adb shell settings put secure doze_pulse_on_long_press 1; turn screen off, long press, verify assistant is launched
Change-Id: I87335d3c091bbb17022d79e599f46fb826039b7d
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 1599f9e..1d8b499 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -428,6 +428,7 @@
                  Settings.Secure.DISABLED_SYSTEM_INPUT_METHODS,
                  Settings.Secure.DISPLAY_DENSITY_FORCED,
                  Settings.Secure.DOZE_ALWAYS_ON,
+                 Settings.Secure.DOZE_PULSE_ON_LONG_PRESS,
                  Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION,
                  Settings.Secure.ENABLED_NOTIFICATION_ASSISTANT,
                  Settings.Secure.ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES,