gta4xl: libsec-ril: Always return an empty value for GET_SMSC_ADDRESS

* Make parameter of type RilData (second last one) passed to SecRil::RequestComplete()
  in OnGetSmscAddressDone() be NULL, so that the framework passes an empty value when sending SMS
* Before U this value was not being used, on U the value returned is "SMSC",format_specifier
  which is considered invalid when passed back to RIL for sending SMS, however when an empty value
  is passed RIL will select the default SMSC, like it did on T and sending SMS works again

Change-Id: I608be406969d7fa58f15ef36340aff4ad1ce9fd0
Co-authored-by: Tim Zimmermann <tim@linux4.de>
2 files changed