misc: tpm: drop extern crate, use modern rust

This commit is part of a series of similar commits.

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com

tpm/src/emulator.rs

@@ -9,6 +9,7 @@ use std::{mem, ptr};
 
 use anyhow::anyhow;
 use libc::{c_void, sockaddr_storage, socklen_t};
+use log::{debug, error};
 use thiserror::Error;
 
 use crate::socket::SocketDev;

tpm/src/lib.rs

@@ -3,9 +3,6 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
-#[macro_use]
-extern crate log;
-
 pub mod emulator;
 pub mod socket;
 

tpm/src/socket.rs

@@ -8,6 +8,7 @@ use std::os::unix::io::{AsRawFd, RawFd};
 use std::os::unix::net::UnixStream;
 
 use anyhow::anyhow;
+use log::debug;
 use thiserror::Error;
 use vmm_sys_util::sock_ctrl_msg::ScmSocket;