skd: Fix out of array boundary access

When enabling MSI-X, interrupts are requested for SKD_MAX_MSIX_COUNT
entries in skdev->msix_entries array, while the number of actually
allocated entries is skdev->msix_count. This might lead to an out of
boundary access in case number of allocated entries is less than
SKD_MAX_MSIX_COUNT. This update fixes the described misbehaviour.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>