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/tlv.c b/boot/bootutil/src/tlv.c
index 9108be4..bf6aebd 100644
--- a/boot/bootutil/src/tlv.c
+++ b/boot/bootutil/src/tlv.c
@@ -29,7 +29,7 @@
  * @param type Type of TLV to look for
  * @param prot true if TLV has to be stored in the protected area, false otherwise
  *
- * @returns 0 if the TLV iterator was succesfully started
+ * @returns 0 if the TLV iterator was successfully started
  *          -1 on errors
  */
 int