ata: libata: add qc->flags in ata_qc_complete_template tracepoint

Add flags value to check the result of ata completion

Fixes: 255c03d1

 ("libata: Add tracepoints")
Cc: stable@vger.kernel.org
Signed-off-by: Edward Wu <edwardwu@realtek.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>