Corrected namespaces from grgsm to gsm
diff --git a/include/grgsm/flow_control/uplink_downlink_splitter.h b/include/grgsm/flow_control/uplink_downlink_splitter.h
index 0dbc0bc..874c0b6 100644
--- a/include/grgsm/flow_control/uplink_downlink_splitter.h
+++ b/include/grgsm/flow_control/uplink_downlink_splitter.h
@@ -28,7 +28,7 @@
 #include <gnuradio/block.h>
 
 namespace gr {
-  namespace grgsm {
+  namespace gsm {
 
     /*!
      * \brief <+description of block+>
@@ -51,7 +51,7 @@
       static sptr make();
     };
 
-  } // namespace grgsm
+  } // namespace gsm
 } // namespace gr
 
 #endif /* INCLUDED_GRGSM_UPLINK_DOWNLINK_SPLITTER_H */