Add new context packagemanager_config_prop

To remove bad context names exported[23]_default_prop

Bug: 155844385
Test: m selinux_policy
Change-Id: Ic4bbc8e45d810368a96f6985c2234798e73be82d
Merged-In: Ic4bbc8e45d810368a96f6985c2234798e73be82d
(cherry picked from commit 072b01438e02e9d3cfba04c768e7a440549cc8b1)
diff --git a/private/compat/30.0/30.0.cil b/private/compat/30.0/30.0.cil
index 3a1c1f2..9810e2f 100644
--- a/private/compat/30.0/30.0.cil
+++ b/private/compat/30.0/30.0.cil
@@ -1364,6 +1364,7 @@
     lmkd_config_prop
     media_config_prop
     mediadrm_config_prop
+    packagemanager_config_prop
     recovery_config_prop
     telephony_config_prop
     zram_config_prop))