Camera: Add HAL module init method.

For use by Camera HAL libraries to perform one-time initialization
steps after the library is loaded.

Bug: 20016050
Change-Id: Ia01ae0eafcadece9124ac2cfcc3b1c3939352843
diff --git a/tests/hardware/struct-offset.cpp b/tests/hardware/struct-offset.cpp
index d6ea073..10c0895 100644
--- a/tests/hardware/struct-offset.cpp
+++ b/tests/hardware/struct-offset.cpp
@@ -214,7 +214,8 @@
     CHECK_MEMBER_AT(camera_module_t, get_vendor_tag_ops, 140, 272);
     CHECK_MEMBER_AT(camera_module_t, open_legacy, 144, 280);
     CHECK_MEMBER_AT(camera_module_t, set_torch_mode, 148, 288);
-    CHECK_MEMBER_AT(camera_module_t, reserved, 152, 296);
+    CHECK_MEMBER_AT(camera_module_t, init, 152, 296);
+    CHECK_MEMBER_AT(camera_module_t, reserved, 156, 304);
 
     //Types defined in camera3.h
     CHECK_MEMBER_AT(camera3_device_ops_t, initialize, 0, 0);