Convert afalgtest

[richsalz]

I can't build this; can someone test?

[dot-asm]

test/afalgtest.c: In function 'test_afalg_aes_128_cbc':
test/afalgtest.c:55:10: warning: implicit declaration of function 'TEST_ptr' [-Wimplicit-function-declaration]
     if (!TEST_ptr(ctx = EVP_CIPHER_CTX_new())
          ^
test/afalgtest.c:56:13: error: expected ')' before 'return'
             return 0;
             ^
test/afalgtest.c:81:1: error: expected expression before '}' token
 }
 ^
test/afalgtest.c:53:9: warning: unused variable 'ret' [-Wunused-variable]
     int ret = 0;
         ^
test/afalgtest.c:52:27: warning: unused variable 'decf' [-Wunused-variable]
     int encl, encf, decl, decf;
                           ^
...

[richsalz]

It builds now. And runs, in many config options :)