sm8350-common: sepolicy: Set sensor HAL as a client of audio HAL

Elliptic ultrasonic proximity sensor's libnotifyaudiohal looks for
the audio HAL during elliptic's activate().

avc:  denied  { find } for interface=android.hardware.audio::IDevicesFactory sid=u:r:hal_sensors_default:s0 pid=970 scontext=u:r:hal_sensors_default:s0 tcontext=u:object_r:hal_audio_hwservice:s0 tclass=hwservice_manager permissive=0

Change-Id: Ibcd6693acb49c810e8ce1f0ea86cf2238ad10a70
Signed-off-by: Chenyang Zhong <zhongcy95@gmail.com>

sepolicy/vendor/hal_sensors_default.te

@@ -7,3 +7,6 @@ allow hal_sensors_default hal_audio_default:unix_stream_socket connectto;
 allow hal_sensors_default iio_device:chr_file r_file_perms;
 allow hal_sensors_default vendor_sysfs_iio:dir r_dir_perms;
 allow hal_sensors_default vendor_sysfs_iio:file rw_file_perms;
+
+hal_client_domain(hal_sensors_default, hal_audio)
+allow hal_sensors_default hal_audio_hwservice:hwservice_manager find;