OmniLib: Add useMicroGBuildType bool symbol

Change-Id: I48aa8a0f4a2f95f0fd3a46a4bfebb4555c38297f
diff --git a/res/values/config.xml b/res/values/config.xml
index e132f1f..40f8aa2 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -62,4 +62,8 @@
          will be charged between (limit - val) and limit. -->
     <integer name="config_chargingControlBatteryRechargeMargin">10</integer>
 
+    <!-- This build type is true when ROM_BUILDTYPE is Microg by
+        installing the MicrogOmniLibOverlay package -->
+    <bool name="config_useMicroGBuildType">false</bool>
+
 </resources>
diff --git a/res/values/symbols.xml b/res/values/symbols.xml
index 59302c5..dc60521 100644
--- a/res/values/symbols.xml
+++ b/res/values/symbols.xml
@@ -50,6 +50,9 @@
     <!-- OmniRom system server -->
     <java-symbol type="string" name="config_externalSystemServer" />
 
+    <!-- OmniRom Rom build type Microg -->
+    <java-symbol type="bool" name="config_useMicroGBuildType" />
+
     <!-- Health interface -->
     <java-symbol type="bool" name="config_chargingControlEnabled" />
     <java-symbol type="bool" name="config_chargingControlToggleSetAlways" />