net/sfc: explicitly control IRQ used for Rx queues
net/sfc: explicitly control IRQ used for Rx queues

Interrupts support has assumptions on interrupt numbers used
for LSC and Rx queues. The first interrupt is used for LSC,
subsequent interrupts are used for Rx queues.

Signed-off-by: Andrew Rybchenko <4155e7bf8e0185127625dac6d84336299844982f@oktetlabs.ru>
Reviewed-by: Andy Moreton <adbee5d9b6a6a553b71b14302d03837591e26c9d@xilinx.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk