event: Convert misc_init_f() to use events

This hook can be implmented using events, for the three boards that
actually use it.

Add the event type and event handlers. Drop CONFIG_MISC_INIT_F since we
can just use CONFIG_EVENT to control this. Since sandbox always enables
CONFIG_EVENT, we can drop the defconfig lines there too.

Signed-off-by: Simon Glass <sjg@chromium.org>

include/configs/km/pg-wcom-ls102xa.h

@@ -272,6 +272,4 @@
 #define CONFIG_SYS_BOOTM_LEN	(64 << 20) /* Increase max gunzip size */
 #define CONFIG_SYS_BOOTMAPSZ	(256 << 20) /* Increase map for Linux */
 
-#define CONFIG_MISC_INIT_F
-
 #endif

include/event.h

@@ -25,6 +25,9 @@ enum event_t {
 	EVT_DM_PRE_REMOVE,
 	EVT_DM_POST_REMOVE,
 
+	/* Init hooks */
+	EVT_MISC_INIT_F,
+
 	EVT_COUNT
 };
 

include/init.h

@@ -217,7 +217,6 @@ int init_cache_f_r(void);
 int print_cpuinfo(void);
 #endif
 int timer_init(void);
-int misc_init_f(void);
 
 #if defined(CONFIG_DTB_RESELECT)
 int embedded_dtb_select(void);