Shorter option for alarm "Silence after"

Bug: 17847039
Change-Id: I7adf072ddd2d8e8a1f0a4875b697086f3f4b13f1
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 4dfc2b2..acadb22 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -252,24 +252,24 @@
     <!-- Entries listed in the ListPreference when invoking the auto silence
          preference. -->
     <string-array name="auto_silence_entries">
+      <item>1 minute</item>
       <item>5 minutes</item>
       <item>10 minutes</item>
       <item>15 minutes</item>
       <item>20 minutes</item>
       <item>25 minutes</item>
-      <item>30 minutes</item>
       <item>Never</item>
       </string-array>
 
     <!-- Values that are retrieved from the ListPreference. These must match
          the auto_silence_entries above. -->
     <string-array name="auto_silence_values" translatable="false">
+      <item>1</item>
       <item>5</item>
       <item>10</item>
       <item>15</item>
       <item>20</item>
       <item>25</item>
-      <item>30</item>
       <item>-1</item> <!-- Off -->
       </string-array>