Correct initial value of co{all,per,gfx}

They should be 0xffffffff to reflect no user input.

main.c

@@ -196,7 +196,7 @@ int main(int argc, const char **argv)
 	uint32_t max_socclk_freq = -1, min_socclk_freq = -1, max_fclk_freq = -1, min_fclk_freq = -1, max_vcn = -1, min_vcn = -1, max_lclk = -1, min_lclk = -1;
 	uint32_t max_gfxclk_freq = -1, min_gfxclk_freq = -1, prochot_deassertion_ramp = -1, apu_skin_temp_limit = -1, dgpu_skin_temp_limit = -1, apu_slow_limit = -1;
 	uint32_t skin_temp_power_limit = -1;
-	uint32_t gfx_clk = -1, oc_clk = -1, oc_volt = -1, coall = 0, coper = 0, cogfx = 0;
+	uint32_t gfx_clk = -1, oc_clk = -1, oc_volt = -1, coall = -1, coper = -1, cogfx = -1;
 
 	//create structure for parseing
 	struct argparse_option options[] = {