Fix Typo in CellIdentityNr

s/fomrat/format/

Bug: 176222981
Test: compilation (docstring only change)
Change-Id: I9c488d468f3e9f207922b13c16dccbaa96c0df7f
diff --git a/telephony/java/android/telephony/CellIdentityNr.java b/telephony/java/android/telephony/CellIdentityNr.java
index 0dfc7f6..b3ec1f0 100644
--- a/telephony/java/android/telephony/CellIdentityNr.java
+++ b/telephony/java/android/telephony/CellIdentityNr.java
@@ -231,7 +231,7 @@
     }
 
     /**
-     * @return Mobile Network Code in string fomrat, or {@code null} if unknown.
+     * @return Mobile Network Code in string format, or {@code null} if unknown.
      */
     @Nullable
     public String getMncString() {