Fixed memory initialization bug (Altera)

This is the equivalent of commit 53979d4f.

modules/genrams/altera/generic_dpram.vhd

@@ -92,7 +92,6 @@ architecture syn of generic_dpram is
         n := n+1;
         pos := pos + 1;
       end loop;
-      pos := pos + 1;
     end loop;
     return tmp;
   end f_memarray_to_ramtype;
@@ -112,7 +111,6 @@ architecture syn of generic_dpram is
         n := n+1;
         pos := pos + 1;
       end loop;
-      pos := pos + 1;
     end loop;
     return tmp;
   end f_memarray_to_ramtype_bs;