ICU-3202 fix some data

X-SVN-Rev: 14109

icu4c/source/data/locales/gv.txt

@@ -70,15 +70,20 @@ gv {
         "Latn",  // ISO 15924 Name 
     }
     ExemplarCharacters{
-	"[a-z]"
+        "[a-z \u00E7]"
+    }
+    AmPmMarkers {
+        "a.m.",
+        "p.m.",
+    }
+    Eras {
+        "RC", // BC
+        "AD"   // AD
     }
-
     // /**************** Info Below is needed ****************/
     // collations{}
     // Countries{}
-    // Eras{}
     // Languages{}
-    // ShortLanguage { }
     // localPatternChars{}
     //
 }