Change scope of ro.init.userspace_reboot.is_supported to public

Test: atest CtsUserspaceRebootHostSideTestCases
Test: m checkbuild
Bug: 135984674
Change-Id: Ie11c6720ee21afef99b4b53415da00d8c1e446ca
diff --git a/init/sysprop/InitProperties.sysprop b/init/sysprop/InitProperties.sysprop
index c856358..b876dc0 100644
--- a/init/sysprop/InitProperties.sysprop
+++ b/init/sysprop/InitProperties.sysprop
@@ -29,7 +29,7 @@
 prop {
     api_name: "is_userspace_reboot_supported"
     type: Boolean
-    scope: System
+    scope: Public
     access: Readonly
     prop_name: "ro.init.userspace_reboot.is_supported"
     integer_as_bool: true