tools/power/x86/intel-speed-select: Increase CPU count

Increase CPU count so that more than 64 is supported in one request.

For example:
sudo ./intel-speed-select -d --cpu 0-66 core-power assoc -clos 0
The above command stops at 63. With this change, it can support more
CPU numbers from 0-255.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

tools/power/x86/intel-speed-select/isst-config.c

@@ -25,7 +25,7 @@ static FILE *outf;
 static int cpu_model;
 static int cpu_stepping;
 
-#define MAX_CPUS_IN_ONE_REQ 64
+#define MAX_CPUS_IN_ONE_REQ 256
 static short max_target_cpus;
 static unsigned short target_cpus[MAX_CPUS_IN_ONE_REQ];