staging: wilc1000: use helper API to pack data for firmware

As discussed in [1] use put_unaligned_le16() & put_unaligned_le32()
helper to pack the data before sending to firmware.

[1]. https://lore.kernel.org/linux-wireless/86bc79ccd379497d56bade79ec8f717603110ef7.camel@sipsolutions.net/



Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Link: https://lore.kernel.org/r/20190806103325.14063-1-ajay.kathat@microchip.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>