usb: serial: Remove 9001 pid from qcserial driver

qcserial driver provides generic interface for gobi serial
drivers(diag, dun, nmea, etc). For Fusion 3/2.5, most of the
serial drivers are bridged directly to peripheral usb drivers
and default pid being used is 9001. Remove 9001 from qcserial
pid list till a new pid is supported for fusion 3/2.5 platform.

Change-Id: Iff8769677b093199b9ed21bd736d1d0c9a8364de
Signed-off-by: Vamsi Krishna <vskrishn@codeaurora.org>