Disable RescueParty in GSI temporary

RescueParty reboot the device to recovery mode if there is any
priv app die continuously. The behavior blocks the testing.
Disable the feature temporary before all problem apps fixed.

Bug: 120679683
Test: Boot a device with GSI and a die app
Test: Unplug USB and does not auto reboot
Change-Id: I70e5b7222299c6d0173d87e41d7a68beeda77dd5
diff --git a/target/board/gsi_system.prop b/target/board/gsi_system.prop
index 0c04a95..d768c83 100644
--- a/target/board/gsi_system.prop
+++ b/target/board/gsi_system.prop
@@ -4,5 +4,8 @@
 # GSI always disables adb authentication
 ro.adb.secure=0
 
+# TODO(b/120679683): disable RescueParty before all problem apps solved
+persist.sys.disable_rescue=true
+
 # TODO(b/78105955): disable privapp_permissions checking before the bug solved
 ro.control_privapp_permissions=disable