USB: Allow initialization of broken keyspan serial adapters.

Fixes the keyspan driver after the addition of additional
checking of driver requirements introduced in usb-serial.c
commit 063a2da8f01806906f7d7b1a1424b9afddebc443. The initialization
of the keyspan usb_serial_driver structs were not initializing the
num_interrupt_out field and the additional checking was rejecting
the end point so the driver wouldn't finish initializing.

This commit initializes the fields to NUM_DONT_CARE.
It works for the keyspan USA-49WG and doesn't break the USA-19HS
which are the two keyspan devices I have to test with.

Signed-off-by: Clark Rawlins <[e-mail]>
Cc: stable <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/serial/keyspan.h

···
 	.description		= "Keyspan - (without firmware)",
 	.id_table		= keyspan_pre_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
+	.num_interrupt_out	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
 	.num_bulk_out		= NUM_DONT_CARE,
 	.num_ports		= 1,
···
 	.description		= "Keyspan 1 port adapter",
 	.id_table		= keyspan_1port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
+	.num_interrupt_out	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
 	.num_bulk_out		= NUM_DONT_CARE,
 	.num_ports		= 1,
···
 	.description		= "Keyspan 2 port adapter",
 	.id_table		= keyspan_2port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
+	.num_interrupt_out	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
 	.num_bulk_out		= NUM_DONT_CARE,
 	.num_ports		= 2,
···
 	.description		= "Keyspan 4 port adapter",
 	.id_table		= keyspan_4port_ids,
 	.num_interrupt_in	= NUM_DONT_CARE,
+	.num_interrupt_out	= NUM_DONT_CARE,
 	.num_bulk_in		= NUM_DONT_CARE,
 	.num_bulk_out		= NUM_DONT_CARE,
 	.num_ports		= 4,