scripts/spelling.txt: add more spellings to spelling.txt

Add some of the more common spelling mistakes and typos that I've found
while fixing up spelling mistakes in the kernel over the past year.

Link: https://lkml.kernel.org/r/20241113102106.1163050-1-colin.i.king@gmail.com


Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>