grgsm_livemon: Use the osr variable in all blocks

In the GSM input adaptor and GSM Receiver blocks the osr was hardcoded
to 4 and cannot be changed using the command line parameter.

Change-Id: I4e85b898f05db636f18fdea6e5fee4fed6e0382a
diff --git a/apps/grgsm_livemon.grc b/apps/grgsm_livemon.grc
index 3d2236d..46b83e2 100644
--- a/apps/grgsm_livemon.grc
+++ b/apps/grgsm_livemon.grc
@@ -933,7 +933,7 @@
     </param>
     <param>
       <key>osr</key>
-      <value>4</value>
+      <value>osr</value>
     </param>
     <param>
       <key>fc</key>
@@ -1043,7 +1043,7 @@
     </param>
     <param>
       <key>osr</key>
-      <value>4</value>
+      <value>osr</value>
     </param>
     <param>
       <key>tseq_nums</key>