rtl8192u/rtl819x_Qos.h: Adjust spaces to coding guidelines

This patch improves spacing according to the coding guidelines,
mainly around braces.

This patch fixes errors reported by checkpatch.

Signed-off-by: Fabian Bläse <fabian.blaese@fau.de>
Signed-off-by: Maximilian Ott <maximilian.o.ott@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>