Update ODK Library to 16.3

Merge from Widevine repo of http://go/wvgerrit/101130

https://cr/314253512
ODK Library: roll version number to 16.3

https://cr/314253425
ODK Library: Accept release request as renewal request

To support forward compatibility, the v16 server should parse a
release request as a renewal request.

https://cr/314213725
ODK: Accept larger message sizes

The ODK should accept a message size that is larger than the
current
API requires. This allows for future API versions to append
fields to
a message that current the current license SDK will
ignore.

https://cr/313962712
ODK: accept messages with future API version numbers

This CL updates the ODK parse functions to accept future versions
of
the message. This will allow a v16 server to talk to a v17
device.

https://cr/313814938
ODK Version String

Add an automatically generated version string to odk_structs.h

Bug: 157030231
Bug: 157512150
Bug: 157822248
Bug: 157512322
Test: unit tests on taimen
Change-Id: I346f73c41bc984fe17856d3b61cd08cf92b39919

libwvdrmengine/oemcrypto/odk/src/odk_structs_priv.h

@@ -21,6 +21,10 @@ typedef enum {
   ODK_Renewal_Response_Type = 4,
   ODK_Provisioning_Request_Type = 5,
   ODK_Provisioning_Response_Type = 6,
+
+  /* Reserve future message types to support forward compatibility. */
+  ODK_Release_Request_Type = 7,
+  ODK_Release_Response_Type = 8,
 } ODK_MessageType;
 
 typedef struct {