usb-dbg: add meson option for enabling ME support

Add a meson option called me_support for enabling ME related feature.
Default value is true (enable)

Tested on Bletchley with me_support false

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I7e9f632b53c68b95f1d63f5408a9025f2a20fc3a
3 files changed