Fix rounding for conversion of PWM/RPM values.

[qquique]

Test :

• Changing from quiet mode to balanced-performance (custom) mode. The hardware values show the values from the previous mode

u(speed_of_unit)|speed1[u]|speed2[u]|speed1[pwm]|speed2[pwm]|acceleration|deceleration|cpu_min_temp|cpu_max_temp|gpu_min_temp|gpu_max_temp|ic_min_temp|ic_max_temp
3	 0	 0	 0	 0	 0	 0	 0	 80	 0	 68	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 86	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 88	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 99	 0	 94	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 100	 0	 0	 0	 0

• Read values from python client

• Modifying cpu rpm's via sysfs hwmon

echo 35 > pwm1_auto_point1_pwm
echo 40 > pwm1_auto_point2_pwm
echo 43 > pwm1_auto_point3_pwm
echo 48 > pwm1_auto_point4_pwm
echo 53 > pwm1_auto_point5_pwm
echo 61 > pwm1_auto_point6_pwm
echo 63 > pwm1_auto_point7_pwm
echo 71 > pwm1_auto_point8_pwm
echo 76 > pwm1_auto_point9_pwm
echo 89 > pwm1_auto_point10_pwm

• Checking valuessudo cat /sys/kernel/debug/legion/fancurve

u(speed_of_unit)|speed1[u]|speed2[u]|speed1[pwm]|speed2[pwm]|acceleration|deceleration|cpu_min_temp|cpu_max_temp|gpu_min_temp|gpu_max_temp|ic_min_temp|ic_max_temp
3	 14	 0	 35	 0	 0	 0	 0	 80	 0	 68	 0	 0
3	 16	 25	 40	 63	 0	 0	 0	 86	 0	 84	 0	 0
3	 17	 25	 43	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 19	 25	 48	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 21	 25	 53	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 24	 25	 61	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 25	 63	 63	 0	 0	 0	 92	 0	 84	 0	 0
3	 28	 25	 71	 63	 0	 0	 0	 92	 0	 88	 0	 0
3	 30	 25	 76	 63	 0	 0	 0	 99	 0	 94	 0	 0
3	 35	 25	 89	 63	 0	 0	 0	 100	 0	 0	 0	 0

• Reading again from python client

• Modifying gpu rpm's in python client and applying to hardware

• Reading values sudo cat /sys/kernel/debug/legion/fancurve

u(speed_of_unit)|speed1[u]|speed2[u]|speed1[pwm]|speed2[pwm]|acceleration|deceleration|cpu_min_temp|cpu_max_temp|gpu_min_temp|gpu_max_temp|ic_min_temp|ic_max_temp
3	 14	 15	 35	 38	 0	 0	 0	 80	 0	 68	 0	 0
3	 16	 17	 40	 43	 0	 0	 0	 86	 0	 84	 0	 0
3	 17	 18	 43	 45	 0	 0	 0	 92	 0	 84	 0	 0
3	 19	 19	 48	 48	 0	 0	 0	 92	 0	 84	 0	 0
3	 21	 20	 53	 51	 0	 0	 0	 92	 0	 84	 0	 0
3	 24	 21	 61	 53	 0	 0	 0	 92	 0	 84	 0	 0
3	 25	 22	 63	 56	 0	 0	 0	 92	 0	 84	 0	 0
3	 28	 23	 71	 58	 0	 0	 0	 92	 0	 88	 0	 0
3	 30	 24	 76	 61	 0	 0	 0	 99	 0	 94	 0	 0
3	 35	 26	 89	 66	 0	 0	 0	 100	 0	 0	 0	 0
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