Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index 26b15ae..c37b520 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -104,7 +104,7 @@
 			entry = &cache->entry[i];
 
 			/*
-			 * Initialise choosen cache entry, and fill it in from
+			 * Initialise chosen cache entry, and fill it in from
 			 * disk.
 			 */
 			cache->unused--;
@@ -286,7 +286,7 @@
 
 
 /*
- * Copy upto length bytes from cache entry to buffer starting at offset bytes
+ * Copy up to length bytes from cache entry to buffer starting at offset bytes
  * into the cache entry.  If there's not length bytes then copy the number of
  * bytes available.  In all cases return the number of bytes copied.
  */