mwifiex: add qualifier to firmware structures

Adding qualifier "__packed" indicates that no padding should be
performed on the qualified object for alignment.
This patch adds qualifier __packed to the required firmware
structures in mwifiex driver.

Signed-off-by: Karthik D A <karthida@marvell.com>

Change-Id: I5678dbd362f0afb9cf62fee3bb38d0f36ad92f73
2 files changed