redbull: allow power hal access cpu0-cpu-l3-lat

[   20.803213] type=1400 audit(1578290297.479:1334): avc: denied { open } for comm="power@1.3-servi" path="/sys/devices/platform/soc/18321000.qcom,devfreq-l3/18321000.qcom,devfreq-l3:qcom,cpu0-cpu-l3-lat/devfreq/18321000.qcom,devfreq-l3:qcom,cpu0-cpu-l3-lat/min_freq" dev="sysfs" ino=44708 scontext=u:r:hal_power_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
[   65.307565] type=1400 audit(1578895648.387:1399): avc: denied { open } for comm="NodeLooperThrea" path="/sys/devices/platform/soc/18321000.qcom,devfreq-l3/18321000.qcom,devfreq-l3:qcom,cpu6-cpu-l3-lat/devfreq/18321000.qcom,devfreq-l3:qcom,cpu6-cpu-l3-lat/min_freq" dev="sysfs" ino=44759 scontext=u:r:hal_power_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1
[   79.462080] type=1400 audit(1578895662.837:1433): avc: denied { write } for comm="NodeLooperThrea" name="min_freq" dev="sysfs" ino=44759 scontext=u:r:hal_power_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file permissive=1

Bug: 147569310
Test: adb shell /data/local/tmp/connectpwhal -m 1

Change-Id: Ic5ab2c90321658377ab5087ec76adc3d7508c525