ax88179_178a: Correct the RX error definition in RX header

ax88179_178a: Correct the RX error definition in RX header

Correct the definition of AX_RXHDR_CRC_ERR and
AX_RXHDR_DROP_ERR. They are BIT29 and BIT31 in pkt_hdr
seperately.

bug 200009821

Change-Id: Ib55e13899a68a86a847708500dccd475e2f0712a
Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: wtsai <wtsai@nvidia.com>
Reviewed-on: http://git-master/r/434739
Reviewed-on: http://git-master/r/450229
(cherry picked from commit 67e4ec14734d8343116fe7a486de6ec0ad3b9e73)
Reviewed-on: http://git-master/r/784056
GVS: Gerrit_Virtual_Submit
Reviewed-by: ChihMin Cheng <ccheng@nvidia.com>
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>