Fix typos in Documentation/: 'S'

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letter 'S'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Alan Cox <alan@redhat.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/rocket.txt b/Documentation/rocket.txt
index 2d11ad6..1d85829 100644
--- a/Documentation/rocket.txt
+++ b/Documentation/rocket.txt
@@ -97,7 +97,7 @@
 requires a 68-byte contiguous block of I/O addresses, starting at one
 of the following: 0x100h, 0x140h, 0x180h, 0x200h, 0x240h, 0x280h,
 0x300h, 0x340h, 0x380h.  This I/O address must be reflected in the DIP
-switiches of *all* of the Rocketport cards.
+switches of *all* of the Rocketport cards.
 
 The second, third, and fourth RocketPort cards require a 64-byte
 contiguous block of I/O addresses, starting at one of the following