rtl8188eu: Change C90 comments to kernel form for files in core/

This commit also includes some sparse fixes for endian issues.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Fix more sparse warnings

For the most part, these are all endian issues.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Convert C90 comments to kernel form for hal/*.c

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Fix regression introduced in commit fb786d0

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>