Improve Changelog and correct alg selection

Improve the description of the API changes in the changelog and
fix some incorrect alg selection variables in ssl_server2.c.

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index b1c1359..d9e5701 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -1476,7 +1476,7 @@
 
 static int parse_cipher(char *buf)
 {
-    int rc = 0;
+    int ret = 0;
     if (strcmp(buf, "AES-128-CCM")) {
         opt.ticket_alg = PSA_ALG_CCM;
         opt.ticket_key_type = PSA_KEY_TYPE_AES;
@@ -1490,13 +1490,13 @@
         opt.ticket_key_type = PSA_KEY_TYPE_AES;
         opt.ticket_key_bits = 192;
     } else if (strcmp(buf, "AES-192-GCM")) {
-        opt.ticket_alg = PSA_ALG_CCM;
+        opt.ticket_alg = PSA_ALG_GCM;
         opt.ticket_key_type = PSA_KEY_TYPE_AES;
         opt.ticket_key_bits = 192;
     } else if (strcmp(buf, "AES-256-CCM")) {
         opt.ticket_alg = PSA_ALG_CCM;
         opt.ticket_key_type = PSA_KEY_TYPE_AES;
-        opt.ticket_key_bits = 128;
+        opt.ticket_key_bits = 256;
     } else if (strcmp(buf, "ARIA-128-CCM")) {
         opt.ticket_alg = PSA_ALG_CCM;
         opt.ticket_key_type = PSA_KEY_TYPE_ARIA;
@@ -1510,7 +1510,7 @@
         opt.ticket_key_type = PSA_KEY_TYPE_ARIA;
         opt.ticket_key_bits = 192;
     } else if (strcmp(buf, "ARIA-192-GCM")) {
-        opt.ticket_alg = PSA_ALG_CCM;
+        opt.ticket_alg = PSA_ALG_GCM;
         opt.ticket_key_type = PSA_KEY_TYPE_ARIA;
         opt.ticket_key_bits = 192;
     } else if (strcmp(buf, "ARIA-256-CCM")) {
@@ -1538,9 +1538,9 @@
         opt.ticket_key_type = PSA_KEY_TYPE_CHACHA20;
         opt.ticket_key_bits = 256;
     } else {
-        rc = -1;
+        ret = -1;
     }
-    return rc;
+    return ret;
 }
 
 int main(int argc, char *argv[])