Fix misspelling of getLteSignalStrenght.

Change to getLteSignalStrength.

Change-Id: Ie2acec9e01af0e64a61902383f06729a7cee1975

telephony/java/android/telephony/CellSignalStrengthLte.java

@@ -94,7 +94,7 @@ public final class CellSignalStrengthLte extends CellSignalStrength implements P
      * @hide
      */
     public void initialize(SignalStrength ss, int timingAdvance) {
-        mSignalStrength = ss.getLteSignalStrenght();
+        mSignalStrength = ss.getLteSignalStrength();
         mRsrp = ss.getLteRsrp();
         mRsrq = ss.getLteRsrq();
         mRssnr = ss.getLteRssnr();

telephony/java/android/telephony/SignalStrength.java

@@ -411,7 +411,7 @@ public class SignalStrength implements Parcelable {
     }
 
     /** @hide */
-    public int getLteSignalStrenght() {
+    public int getLteSignalStrength() {
         return mLteSignalStrength;
     }