Fix the sys/opencrypto/runtests test when aesni(4) is already loaded

Apparently kldstat requires the full module name, including busname

Reported by:	Jenkins
MFC after:	2 weeks

tests/sys/opencrypto/runtests.sh

@@ -50,9 +50,9 @@ cleanup_tests()
 }
 trap cleanup_tests EXIT INT TERM
 
-for required_module in aesni cryptodev; do
+for required_module in nexus/aesni cryptodev; do
 	if ! kldstat -q -m $required_module; then
-		kldload $required_module
+		kldload ${required_module#nexus/}
 		loaded_modules="$loaded_modules $required_module"
 	fi
 done