default-configs: add test device to all machines supporting ISA

This will let these machines run an endianness test for ISA
I/O port space.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-22-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/default-configs/sh4-softmmu.mak b/default-configs/sh4-softmmu.mak
index ef963ee..bea21ac 100644
--- a/default-configs/sh4-softmmu.mak
+++ b/default-configs/sh4-softmmu.mak
@@ -8,3 +8,4 @@
 CONFIG_SH4=y
 CONFIG_IDE_MMIO=y
 CONFIG_SM501=y
+CONFIG_ISA_TESTDEV=y