Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/arch/sh/lib64/copy_user_memcpy.S b/arch/sh/lib64/copy_user_memcpy.S
index 2a62816..49aeabe 100644
--- a/arch/sh/lib64/copy_user_memcpy.S
+++ b/arch/sh/lib64/copy_user_memcpy.S
@@ -27,7 +27,7 @@
 ! 2.: When there are two or three bytes in the last word of an 11-or-more
 !     bytes memory chunk to b copied, the rest of the word can be read
 !     without side effects.
-!     This could be easily changed by increasing the minumum size of
+!     This could be easily changed by increasing the minimum size of
 !     a fast memcpy and the amount subtracted from r7 before L_2l_loop be 2,
 !     however, this would cost a few extra cyles on average.
 !     For SHmedia, the assumption is that any quadword can be read in its