Remove deprecated call of AES_ctr128_encrypt
Remove deprecated call of AES_ctr128_encrypt

 * The AES_ctr128_encrypt function is not available in OpenSSL 1.1.0
   without a special compiler flag
 * Fix a small misspelling

telegramdesktop/libtgvoip,grishka/libtgvoip,telegramdesktop/libtgvoip,grishka/libtgvoip,grishka/libtgvoip,grishka/libtgvoip