Fix some typos in Documentation/: 'A'

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

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

Documentation/scsi/ncr53c8xx.txt

@@ -1151,7 +1151,7 @@ Driver files:
 
 New driver versions are made available separately in order to allow testing 
 changes and new features prior to including them into the linux kernel 
-distribution. The following URL provides informations on latest avalaible 
+distribution. The following URL provides information on latest available 
 patches: 
 
       ftp://ftp.tux.org/pub/people/gerard-roudier/README

Documentation/scsi/ppa.txt

@@ -3,7 +3,7 @@
 General Iomega ZIP drive page for Linux:
 http://www.torque.net/~campbell/
 
-Driver achive for old drivers:
+Driver archive for old drivers:
 http://www.torque.net/~campbell/ppa/
 
 Linux Parport page (parallel port)

Documentation/scsi/tmscsim.txt

@@ -27,7 +27,7 @@ Tekram DC390(T) adapter. This is where the name comes from: tm = Tekram
 scsi = SCSI driver, m = AMD (?) as opposed to w for the DC390W/U/F
 (NCR53c8X5, X=2/7) driver. Yes, there was also a driver for the latter,
 tmscsiw, which supported DC390W/U/F adapters. It's not maintained any more,
-as the ncr53c8xx is perfectly supporting these adpaters since some time.
+as the ncr53c8xx is perfectly supporting these adapters since some time.
 
 The driver first appeared in April 1996, exclusively supported the DC390 
 and has been enhanced since then in various steps. In May 1998 support for