[cli] register_tcb_info broken

[brenzi]

the resulting call can't be decoded by the runtime:

cli trace:
https://gist.github.com/brenzi/e6c309fda92669c3dbc316ad1ac2b2a4

[clangenb]

Probably the extrinsic V5 PR that broke it I suppose.

[brenzi]

no, just fixed it. It's a change in api client macro behavior which returns an Option instead of the call, which prefixed the OpaqueCall with a 0x01. PR coming in

[clangenb]

Well, this change was introduced in the Extrinsic V5 PR. ;)