peregrine: Snap: Disable ZSL

If ZSL is enabled, the HAL might automatically force a lower fps
(depending on the current resolution). This causes problems if the
normal fps range is not restored before changing configuration
(e.g. changing resolution, enabling HDR, switching to video mode).
When this happens, the sensor gets stuck at low fps, the preview
becomes dark and an invalid fps preview range might get selected,
leading to a crash. Disable ZSL to prevent all these issues.

Change-Id: I0b00dd65a1ff88547d39874ec1c60fb9263335f7

overlay/packages/apps/Snap/res/values/qcomstrings.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+    Copyright (C) 2014-2016 The CyanogenMod Project
+
+    Not a Contribution.
+
+    Copyright (C) 2007 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<resources>
+
+    <!-- Zero shutter lag-->
+    <string name="pref_camera_zsl_default" translatable="false">off</string>
+
+</resources>