scripts/spelling.txt: add some typo-words

I wrote a simple script to find new typo not in spelling.txt.
(https://github.com/jinb-park/find-linux-kernel-typo)

and get following result:

[ rank ]
63 paramaters
18 alignement
9 strucuture
....

The number means how many files include the typo.
This patch adds these common typo.

Link: http://lkml.kernel.org/r/20170112113452.GA7042@pjb1027-Latitude-E5410
Signed-off-by: Jinbum Park <[e-mail]>
Acked-by: Kees Cook <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

scripts/spelling.txt

···
 algorrithm||algorithm
 algorritm||algorithm
 aligment||alignment
+alignement||alignment
 allign||align
 allocatrd||allocated
 allocte||allocate
···
 pallette||palette
 paln||plan
 paramameters||parameters
+paramaters||parameters
 paramater||parameter
 parametes||parameters
 parametised||parametrised
···
 struc||struct
 structres||structures
 stuct||struct
+strucuture||structure
 stucture||structure
 sturcture||structure
 subdirectoires||subdirectories