usb: host: ehci.h: remove macros trailing semicolon

Removes trailing semicolon from macros.

Caught by checkpatch:
"WARNING: macros should not use a trailing semicolon"

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>