common/sfc_efx/base: add virtio build dependency
common/sfc_efx/base: add virtio build dependency

Add EFSYS_HAS_UINT64 build dependency on EFSYS_OPT_VIRTIO.
virtio features are represented as bitmask in 64-bit unsigned
integer.

Signed-off-by: Vijay Kumar Srivastava <fc182fe1c404ff5fb2a5477c18fd42f2861e3450@xilinx.com>
Signed-off-by: Andrew Rybchenko <4155e7bf8e0185127625dac6d84336299844982f@oktetlabs.ru>

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