sepolicy: allow init to change usf_prop

Allow init_shell scripts to set qc.sdk.us property.

Change-Id: I6ee2eb1fa49f8927522113caef44649d09ba015e
diff --git a/common/property_contexts b/common/property_contexts
index 19496cb..157bfca 100644
--- a/common/property_contexts
+++ b/common/property_contexts
@@ -5,6 +5,7 @@
 sys.ims.                   u:object_r:qcom_ims_prop:s0
 hw.fm.                     u:object_r:fm_prop:s0
 sys.usf.                   u:object_r:usf_prop:s0
+qc.sdk.us.                 u:object_r:usf_prop:s0
 radio.atfwd.               u:object_r:radio_prop:s0
 ctl.qmuxd                  u:object_r:ctl_qmuxd_prop:s0
 ctl.netmgrd                u:object_r:ctl_netmgrd_prop:s0