COB-153: Fixed typo

RTCP/Cobalt/GPUProc/src/Kernels/FIR_FilterKernel.h

@@ -119,7 +119,7 @@ namespace LOFAR
 
       void enqueue(const BlockID &blockId,
                    unsigned subbandIdx,
-                   double subbandFreqyency=0.0); // needed for Doppler corr.
+                   double subbandFrequency=0.0); // needed for Doppler corr.
 
       // Put the historyFlags[subbandIdx] in front of the given inputFlags,
       // and update historyFlags[subbandIdx] with the flags of the last samples