Add string for set data warning.

Bug: 26934313
Test: make Settings
Change-Id: I97dde849d9f0785c536b01471ab243aaccc85400
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1bd5283..7cde43b 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -7367,6 +7367,9 @@
     <!-- Format string describing how much data has been used [CHAR LIMIT=20] -->
     <string name="data_used_template"><xliff:g name="amount" example="1 GB">%1$s</xliff:g> used</string>
 
+    <!-- Label for switch about whether to warn user about usage [CHAR LIMIT=30] -->
+    <string name="set_data_warning">Set data warning</string>
+
     <!-- Label for button to set the amount of data before user is warned about usage [CHAR LIMIT=30] -->
     <string name="data_warning">Data warning</string>