staging: rtl8192u: fix whitespace in r819xU_phy.h

This patch fixes the whitespace around braces
to follow the linux kernel coding style and
removes some tabs to better align struct fields.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>