Convert CONFIG_SMSC_LPC47M et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SMSC_LPC47M
   CONFIG_SMSC_SIO1007

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/crownbay_defconfig b/configs/crownbay_defconfig
index cb0f0d7..038cbbe 100644
--- a/configs/crownbay_defconfig
+++ b/configs/crownbay_defconfig
@@ -56,6 +56,7 @@
 CONFIG_LBA48=y
 CONFIG_SYS_64BIT_LBA=y
 CONFIG_CPU=y
+CONFIG_SMSC_LPC47M=y
 CONFIG_E1000=y
 CONFIG_SYS_NS16550_PORT_MAPPED=y
 CONFIG_SOUND=y