i40e: refactor AQ CMD buffer debug printing

i40e: refactor AQ CMD buffer debug printing

This patch refactors the '%*ph' printk format specifier to instead use
the print_hex_dump function, as recommended by the '%*ph' documentation.
This produces better/more standardized output.

Change-ID: Id56700b4e8abc40ff8c04bc8379e7df04cb4d6fd
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Orabug: 26132523
(cherry picked from commit 773d4023badee2e196f4125a94fe9d5a739720a0)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Brian Maly <brian.maly@oracle.com>