hw: move char devices to hw/char/, configure via default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index 8eb04e2..8da5ec8 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -57,6 +57,7 @@
 CONFIG_OMAP=y
 CONFIG_BLIZZARD=y
 CONFIG_ONENAND=y
+CONFIG_IMX=y
 CONFIG_ZAURUS=y
 
 CONFIG_VERSATILE_PCI=y