Make account preference icons bigger.

Use the regular preference layout for AccountTypePreference so that the
icon size will be the standard size.

Change-Id: I58a9e2d02b94f5abd9c8bb546f3d4e2984b3d6c6
Fix: 63660734
Test: visual

src/com/android/settings/accounts/AccountTypePreference.java

@@ -72,7 +72,6 @@ public class AccountTypePreference extends Preference implements OnPreferenceCli
             String titleResPackageName, int titleResId, CharSequence summary, String fragment,
             Bundle fragmentArguments, Drawable icon) {
         super(context);
-        setLayoutResource(R.layout.preference_small_icon);
         mTitle = account.name;
         mTitleResPackageName = titleResPackageName;
         mTitleResId = titleResId;