Fix typos in Documentation/: 'N'-'P'

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'N'-'P'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

Documentation/power/userland-swsusp.txt

@@ -91,7 +91,7 @@ unfreeze user space processes frozen by SNAPSHOT_UNFREEZE if they are
 still frozen when the device is being closed).
 
 Currently it is assumed that the userland utilities reading/writing the
-snapshot image from/to the kernel will use a swap parition, called the resume
+snapshot image from/to the kernel will use a swap partition, called the resume
 partition, as storage space.  However, this is not really required, as they
 can use, for example, a special (blank) suspend partition or a file on a partition
 that is unmounted before SNAPSHOT_ATOMIC_SNAPSHOT and mounted afterwards.

Documentation/power/video.txt

@@ -16,7 +16,7 @@ problem for S1 standby, because hardware should retain its state over
 that.
 
 We either have to run video BIOS during early resume, or interpret it
-using vbetool later, or maybe nothing is neccessary on particular
+using vbetool later, or maybe nothing is necessary on particular
 system because video state is preserved. Unfortunately different
 methods work on different systems, and no known method suits all of
 them.