Add blocked reason for OEM deny firewall chains

FIREWALL_CHAIN_OEM_DENY_x chains were added by aosp/2114533 but
corresponding blocked reasons were not added.
Upcoming aosp/3027488 updates CS to generate blocked reasons based on
bpf map contents.
Without blocked reasons for oem deny chains, onBlockedStatusChanged
callback will have inconsistency from the actual network blocked status.
This CL adds BLOCKED_REASON_OEM_DENY for FIREWALL_CHAIN_OEM_DENY_x chains

Bug: 328732146
Test: TH
Change-Id: I3793aa0e231d32fea5eb202ed69e170f74d66b02
diff --git a/framework/api/module-lib-current.txt b/framework/api/module-lib-current.txt
index b2aafa0..d233f3e 100644
--- a/framework/api/module-lib-current.txt
+++ b/framework/api/module-lib-current.txt
@@ -52,6 +52,7 @@
     field public static final int BLOCKED_REASON_LOCKDOWN_VPN = 16; // 0x10
     field public static final int BLOCKED_REASON_LOW_POWER_STANDBY = 32; // 0x20
     field public static final int BLOCKED_REASON_NONE = 0; // 0x0
+    field @FlaggedApi("com.android.net.flags.blocked_reason_oem_deny_chains") public static final int BLOCKED_REASON_OEM_DENY = 128; // 0x80
     field public static final int BLOCKED_REASON_RESTRICTED_MODE = 8; // 0x8
     field @FlaggedApi("com.android.net.flags.basic_background_restrictions_enabled") public static final int FIREWALL_CHAIN_BACKGROUND = 6; // 0x6
     field public static final int FIREWALL_CHAIN_DOZABLE = 1; // 0x1