Skb under panic issue is seen when a packet comes via RX err path,
MSDU length read by SW is coming as 0 and leaving no space for skb_push
in buffer, data is moving beyond the head and causing the issue.
MSDU length is read by generic API which is architecture-independent,
hence the struct size for one architecture is different from another
architecture.
FIX is to get the MSDU length by architecture-specific API.
Change-Id: I5a6259034e5e06ae9ce7ba6b135b44f2849f2fd9
CRs-Fixed: 3235636
e198badbe6