Patch to fix broken Yaesu backend with FT-2000(D)

Hi All,

attached is a patch to correct the Yaesu backend to stop it sending the
SH1; command to teh FT-2000(D) radios where it is illegal.

73
Bill
G4WJS.

commit 8e60a966de140c14fe506f958de92a8e1b738d2c
Author: Bill Somerville <bill@classdesign.com>
Date:   Fri Sep 20 02:10:58 2013 +0100

    Fix Yaesu backend using illegal command on FT-2000

    The FT-2000 doesn't support the SH1; command used by
    the get_mode/set_mode function. This was causing a
    "Protocol error" return when trying to get/set the mode
    of VFO B.

Signed-off-by: Nate Bargmann <n0nb@n0nb.us>