Fixes around cmee

Signed-off-by: Sara Damiano <sdamiano@stroudcenter.org>

src/TinyGsmClientSaraR4.h

@@ -653,10 +653,10 @@ class TinyGsmSaraR4 : public TinyGsmModem<TinyGsmSaraR4, READ_AND_CHECK_SIZE,
           index = 2;
           goto finish;
         } else if (r3 && data.endsWith(r3)) {
-          index = 3;
           if (r3 == GFP(GSM_CME_ERROR)) {
             streamSkipUntil('\n');  // Read out the error
           }
+          index = 3;
           goto finish;
         } else if (r4 && data.endsWith(r4)) {
           index = 4;