Rename wolfssh test certs

[gojimmypi]

Renames all local wolfSSH test certificates with _ssh suffix to avoid conflcts with those in wolfssl/test_certs.h

See also:

• wolfSSL certificate generation: https://github.com/wolfSSL/wolfssl/blob/master/gencertbuf.pl
• Exclude wolfssl certs_test.h from Espressif user_settings.h wolfssl#9123
• Change certs_test sizeof const to define for Watcom wolfssl#9099
• echo_server example fails to build for ESP32 due to redefinition of certs #826

Testing:

wolfssl:

cd /mnt/c/workspace/wolfssl-$USER
make distclean
./autogen.sh
./configure --prefix=/mnt/c/workspace/wolfssh-$USER/wolfssl_install --enable-ssh
make
make install

wolfssh echoserver:

cd /mnt/c/workspace/wolfssh-$USER
./autogen.sh
./configure --with-wolfssl=/mnt/c/workspace/wolfssh-$USER/wolfssl_install
make

wolfssh client:

cd /mnt/c/workspace/wolfssh-$USER
./examples/client/client -u jill -h localhost -p 22222 -P upthehill
# or 
./examples/client/client -u jill -h 192.168.1.34 -p 22222 -P upthehill

[dgarske]

You must also update https://github.com/wolfSSL/wolfssh/blob/master/gencertbuf.pl

[gojimmypi]

Good catch on the script. It appears to not be the script that generated the local wolfssh/certs_test.h.

I updated the script in 341a093 to match the current file contents.