dm: cros_ec: Convert cros_ec LPC driver to driver model

This is the last driver to be converted. It requires an LPC bus and a
special check_version() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/chromebook_link_defconfig b/configs/chromebook_link_defconfig
index f3196fd..fe2610a 100644
--- a/configs/chromebook_link_defconfig
+++ b/configs/chromebook_link_defconfig
@@ -10,3 +10,4 @@
 CONFIG_FRAMEBUFFER_SET_VESA_MODE=y
 CONFIG_FRAMEBUFFER_VESA_MODE_11A=y
 CONFIG_DM_PCI=y
+CONFIG_CROS_EC_LPC=y