Merge branch 'bugfix/rom_aes_set_endian' into 'master'

[Github] Fix prototype for ets_aes_set_endian

https://github.com/espressif/esp-idf/pull/3

Original description:
>
> found small mistake in it
>
> we have:
>
```
PROVIDE ( ets_aes_crypt = 0x4005c9b8 );
PROVIDE ( ets_aes_disable = 0x4005c8f8 );
PROVIDE ( ets_aes_enable = 0x4005c8cc );
PROVIDE ( ets_aes_set_endian = 0x4005c928 );
PROVIDE ( ets_aes_setkey_dec = 0x4005c994 );
PROVIDE ( ets_aes_setkey_enc = 0x4005c97c );
```

See merge request !29