staging: rtl8723au: Reformat whitespace to increase readability

Adjust the whitespace in the signature, local variable declaration and
initialization parts of a number of functions to increase readability
in rtl8723au's rtw_security.c.

Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>