i40e: Replace one-element array with flex-array member in struct i40e_profile_aq_section

One-element and zero-length arrays are deprecated. So, replace
one-element array in struct i40e_profile_aq_section with
flexible-array member.

This results in no differences in binary output.

Link: https://github.com/KSPP/linux/issues/335Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/i40e/i40e_type.h

@@ -1523,7 +1523,7 @@ struct i40e_profile_aq_section {
 	u16 flags;
 	u8  param[16];
 	u16 datalen;
-	u8  data[1];
+	u8  data[];
 };
 
 struct i40e_profile_info {