USB: serial: option: add Telit generic core-dump composition

Add the following core-dump composition, used in different Telit modems:

0x9000: tty (sahara)
T:  Bus=03 Lev=01 Prnt=03 Port=07 Cnt=01 Dev#= 41 Spd=480  MxCh= 0
D:  Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1bc7 ProdID=9000 Rev=00.00
S:  Manufacturer=Telit Cinterion
S:  Product=FN990-dump
S:  SerialNumber=e815bdde
C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=2mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=10 Driver=option
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>