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Fix the following warning:

inlined from ‘bnxt_hwrm_queue_cos2bw_qcfg’ at drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c:165:3,
./include/linux/fortify-string.h:592:4: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror]
    __read_overflow2_field(q_size_field, size);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Modify the FW interface defintion of struct hwrm_queue_cos2bw_qcfg_output
to use an array of sub struct for the queue1 to queue7 fields.  Note that
the layout of the queue0 fields are different and these are not part of
the array.  This makes the code much cleaner by removing the pointer
arithmetic for memcpy().

Link: https://lore.kernel.org/netdev/20230727190726.1859515-2-kuba@kernel.org/

Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230807145720.159645-2-michael.chan@broadcom.com

Signed-off-by: Jakub Kicinski <kuba@kernel.org>