r8152: ecm and vendor modes coexist

Remove the limitation that the ecm and r8152 drivers couldn't coexist.
 - Remove the devices from the blacklist of relative drivers.
 - Remove usb_driver_set_configuration() from r8152 driver.
 - Modify the id_table of the r8152 driver for the vendor mode only.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/usb/cdc_ether.c
Simple merge

diff --cc drivers/net/usb/r8152.c
Simple merge

diff --cc drivers/net/usb/r815x.c
Simple merge