event: Convert arch_cpu_init_dm() to use events

Instead of a special function, send an event after driver model is inited
and adjust the boards which use this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/lib/fsp2/fsp_init.c b/arch/x86/lib/fsp2/fsp_init.c
index 5afdce1..b15926e 100644
--- a/arch/x86/lib/fsp2/fsp_init.c
+++ b/arch/x86/lib/fsp2/fsp_init.c
@@ -9,6 +9,7 @@
 #include <bootstage.h>
 #include <cbfs.h>
 #include <dm.h>
+#include <event.h>
 #include <init.h>
 #include <log.h>
 #include <spi.h>
@@ -18,7 +19,7 @@
 #include <dm/uclass-internal.h>
 #include <asm/fsp2/fsp_internal.h>
 
-int arch_cpu_init_dm(void)
+int fsp_setup_pinctrl(void *ctx, struct event *event)
 {
 	struct udevice *dev;
 	ofnode node;
@@ -41,6 +42,7 @@
 
 	return ret;
 }
+EVENT_SPY(EVT_DM_POST_INIT, fsp_setup_pinctrl);
 
 #if !defined(CONFIG_TPL_BUILD)
 binman_sym_declare(ulong, intel_fsp_m, image_pos);