Define SSHCONF from strongswan testing directory, not TESTDIR

This fixes the use of SSHCONF in the ssh wrapper script before ./do-tests
had a chance to create the required symlinks.

testing/scripts/load-testconfig

@@ -17,6 +17,7 @@
 DIR=$(dirname `readlink -f $0`)
 . $DIR/../testing.conf
 . $DIR/function.sh
+SSHCONF="-F $DIR/../ssh_config"
 
 ##########################################################################
 # load-testconfig requires a testname as an argument

testing/scripts/restore-defaults

@@ -17,6 +17,7 @@
 DIR=$(dirname `readlink -f $0`)
 . $DIR/../testing.conf
 . $DIR/function.sh
+SSHCONF="-F $DIR/../ssh_config"
 
 testname=$1