uefi-raw: add Tcpv4 protocol type definitions#1797

JayKickliter wants to merge 3 commits intorust-osdev:mainrust-osdev/uefi-rs:mainfrom

JayKickliter:jsk/uefi-raw/add-tcpv4JayKickliter/uefi-rs:jsk/uefi-raw/add-tcpv4Copy head branch name to clipboard