qcacmn: Change QDF_MAX_AVAILABLE_CPU value

Currently QDF_MAX_AVAILABLE_CPU value is 8 for QCA_CONFIG_SMP
case, This hard coded value can result in out of bound issue
if available CPUs are greater than 8.

So to fix issue define QDF_MAX_AVAILABLE_CPU value to NR_CPUS.

CRs-Fixed: 3618754
Change-Id: Ic493aac48ac4a4d2fd983a294d45d86bb062fb61

qdf/inc/qdf_util.h

@@ -28,7 +28,7 @@
 #include <i_qdf_util.h>
 
 #ifdef QCA_CONFIG_SMP
-#define QDF_MAX_AVAILABLE_CPU	8
+#define QDF_MAX_AVAILABLE_CPU	NR_CPUS
 #else
 #define QDF_MAX_AVAILABLE_CPU	1
 #endif