adbd: add vsock to AdbTransportType

adbd already supports the vsock transport
and emulators (cuttlefish and goldfish)
already use it.

Bug: 402444824
Test: presubmit
Flag: EXEMPT no new behavior
Change-Id: I0727cea39fb354d9355d15f01b02f02494b8d56b
Signed-off-by: Roman Kiryanov <rkir@google.com>
diff --git a/libs/adbd_auth/include/adbd_auth.h b/libs/adbd_auth/include/adbd_auth.h
index cb2639c..1ef119a 100644
--- a/libs/adbd_auth/include/adbd_auth.h
+++ b/libs/adbd_auth/include/adbd_auth.h
@@ -32,6 +32,7 @@
 enum AdbTransportType : int32_t {
     kAdbTransportTypeUsb = 0,
     kAdbTransportTypeWifi,
+    kAdbTransportTypeVsock,
 };
 static_assert(sizeof(AdbTransportType) == sizeof(int32_t), "Unexpected AdbTransportType size");