trusty: utils: rpmb_dev: modify wv secure storage init.rc

Changing property name for widevine VM property to follow
system properties naming convention.

Bug: 371777025
Test: cuttlefish with trusty-vm enablement apex, run WV VTS
Change-Id: I0ff9e037bd76672173cd713960105babeac5f7f9
diff --git a/trusty/utils/rpmb_dev/rpmb_dev.wv.system.rc b/trusty/utils/rpmb_dev/rpmb_dev.wv.system.rc
index 3e7f8b4..003b6fe 100644
--- a/trusty/utils/rpmb_dev/rpmb_dev.wv.system.rc
+++ b/trusty/utils/rpmb_dev/rpmb_dev.wv.system.rc
@@ -33,7 +33,7 @@
 
 # RPMB Mock
 on early-boot && \
-    property:ro.hardware.security.trusty.widevine_vm.system=1 && \
+    property:trusty.widevine_vm.enabled=1 && \
     property:trusty.widevine_vm.vm_cid=* && \
     property:ro.boot.vendor.apex.com.android.services.widevine=\
 com.android.services.widevine.cf_guest_trusty_nonsecure