Fix up typos

Ran automated checker for common typos [1]. Most of these changes have
no functional change *except* for `./ci/sim_run.sh` where, previously
the `bootstrap` feature wasn't being selected properly.

I didn't touch anything in the `./ext/` folder as anything in there
should probably be fixed in the upstream repo.

[1] https://github.com/codespell-project/codespell

Signed-off-by: Sam Bristow <sam@bristow.nz>
diff --git a/boot/bootutil/src/bootutil_misc.c b/boot/bootutil/src/bootutil_misc.c
index 4bf662f..4a2ab9a 100644
--- a/boot/bootutil/src/bootutil_misc.c
+++ b/boot/bootutil/src/bootutil_misc.c
@@ -310,7 +310,7 @@
  * This functions tries to locate the status area after an aborted swap,
  * by looking for the magic in the possible locations.
  *
- * If the magic is sucessfully found, a flash_area * is returned and it
+ * If the magic is successfully found, a flash_area * is returned and it
  * is the responsibility of the called to close it.
  *
  * @returns 0 on success, -1 on errors