For SRIOV, fastpath status blocks are not allocated resulting in
segfault. Separate out fastpath DMA allocation/free from rest of
memory allocation/free. It is now done as part of NIC load/unload.
Comment indentation changes in bnx2x_alloc_hsi_mem() and
bnx2x_free_hsi_mem() APIs.
Fixes: f0219d98defd ("net/bnx2x: fix interrupt flood")
Cc: stable@dpdk.org
Signed-off-by: Rasesh Mody <rmody@marvell.com>