V4L/DVB (12754): af9015: [2/2] fix USB TS configuration

Fix wrongly configured USB1.1 TS EP.

Patch serie also increases USB URB size to reduce wakeups.
USB1.1 URB size from 64 to 940 bytes
USB2.0 URB size from 512 to 16356 bytes

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>