[ddktl][bti] bti for ethernet

add support for get_bti to ddktl ethernet interface.
Also added for tests and tapdevice.

Change-Id: I826c606d3db15d91ed7c4376ce58fbe86f1352d2

[ddk][ethernet] rename PROTOCOL_ETHERMAC to PROTOCOL_ETHERNET_IMPL

Change-Id: Iebcd11d56559e55e4d83bbe861535200cd246ba5

[ddktl] Set default for EthmacSetParam to true

Step 3/5

NET-9

Change-Id: Icfc0d2ae2b1bc237f136cb9ccacea83bf39bfe1a

[ddktl] Add EthmacSetParam

Step 1/5

NET-9

Change-Id: I7ff2f20b1a1c743f1a33ae5b6b22119656173b07

[ddktl] Add support for EthmacCompleteTx

Add support to the EthmacIfc base class.

For EthmacIfcProxy, the cookie should come from the wrapper, not passed
in as a parameter.

Change-Id: Ic24715f17ffe0c8a429a6873528e1a4bf1cb9575

[ethernet] Add support for asynchronous eth tx

queue_tx replaces send as the interface for both synchronous and
asynchronous transmissions. Tx data is now passed using ethmac_netbuf_t
structures. If the driver chooses to hold on to the netbuf until
buffer space is available, it can return ZX_ERR_SHOULD_WAIT from queue_tx
and call the ethmac complete_tx() callback when the netbuf is no longer
needed.

NET-212

Change-Id: I2da2c503a12fbea0f8c74d8d1e05b83161a15f4a

[zx] Magenta -> Zircon

The Great Renaming is here!

Change-Id: I3229bdeb2a3d0e40fb4db6fec8ca7d971fbffb94

[zircon][mxtl->fbl] Rename mxtl to fbl

Change-Id: Ie21b6498e1bfb0a7fa0315e40b9e5c3ee78646be

[mxtl][mxalloc] Redirect all clients of mxalloc to mxtl.

Change-Id: Ib6d88937212ab23612f59add8bd028862308ead5

[ddktl] Move ddktl to its own ulib

Change-Id: I486b6c7fbca906287550930e8122fa464a28137f