silence double free warning

[trixirt]

clang static analysis reports this issue on RHEL open-gpu-kernel-modules/kernel-open/nvidia/nv.c:1392:9: warning: Attempt to free released memory [unix.Malloc] NV_KFREE(nvl->irq_count, nvl->num_intr*sizeof(nv_irq_count_info_t)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This is a false positive, NV_FLAG_USES_MSIX and NV_FLAG_USES_MSI are mutually exclusive. Convert the NV_FLAG_USE_MSIX 'if' to an 'if else'

Signed-off-by: Tom Rix [email protected]