selftest supports cmac if only MBEDTLS_DES_C is defined
Other minor typo fixes
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index 17fdb21..74eed59 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -278,7 +278,7 @@
     suites_tested++;
 #endif
 
-#if defined(MBEDTLS_CMAC_C) && defined(MBEDTLS_AES_C)
+#if defined(MBEDTLS_CMAC_C) && ( defined(MBEDTLS_AES_C) || defined(MBEDTLS_DES_C) )
     if( ( ret = mbedtls_cmac_self_test( v ) ) != 0 )
         return( ret );
 #endif