Introduce flag for Session Param Injection

Bug: 308984721
Test: m
Change-Id: I7630e1bb8ca9ef4d0d29c9a2901b4100184da5ab
diff --git a/camera/camera_platform.aconfig b/camera/camera_platform.aconfig
index 90d73e4..f8dfe34 100644
--- a/camera/camera_platform.aconfig
+++ b/camera/camera_platform.aconfig
@@ -46,4 +46,11 @@
      name: "session_hal_buf_manager"
      description: "Enable or disable HAL buffer manager as requested by the camera HAL"
      bug: "311263114"
-}
\ No newline at end of file
+}
+
+flag {
+    namespace: "camera_platform"
+    name: "inject_session_params"
+    description: "Enable session parameter injection via reconfiguration"
+    bug: "308984721"
+}