Notify the framework when an adb key is authorized

Bug: 124076524
Test: atest AdbDebuggingManagerTest
Change-Id: If73b81ca73ba4d64763cf49c1bbe42de81fa1cb6
diff --git a/adb/adb.h b/adb/adb.h
index 3a6f059..9324cee 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -33,6 +33,7 @@
 
 constexpr size_t MAX_PAYLOAD_V1 = 4 * 1024;
 constexpr size_t MAX_PAYLOAD = 1024 * 1024;
+constexpr size_t MAX_FRAMEWORK_PAYLOAD = 64 * 1024;
 
 constexpr size_t LINUX_MAX_SOCKET_SIZE = 4194304;