staging: rts5208/ms.c: Code style fix (space before comma)

This commit fixes the following errors reported by checkpatch.pl -f:
./rts5208/ms.c:1294: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1345: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1622: ERROR: space prohibited before that ',' (ctx:WxW)
./rts5208/ms.c:1991: ERROR: space prohibited before that ',' (ctx:WxW)

This patch also adds missing spaces before and after '+' sign in two places.

This file has some other style issues and they will be fixed with latter
patches.

Signed-off-by: Robert Kmiec <robert.r.kmiec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>