bootm: Create a function to run through the booti states

In a few places, the booti command is used to handle a boot. We want
these to be done without needing CONFIG_CMDLINE, so add a new
booti_run() function to handle this.

So far this is not used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/bootm.h

@@ -176,6 +176,19 @@ int bootm_run(struct bootm_info *bmi);
  */
 int bootz_run(struct bootm_info *bmi);
 
+/**
+ * booti_run() - Run the entire booti process
+ *
+ * This runs through the booti process from start to finish, using the default
+ * set of states.
+ *
+ * This uses bootm_run_states().
+ *
+ * @bmi: bootm information
+ * Return: 0 if ok, something else on error
+ */
+int booti_run(struct bootm_info *bmi);
+
 void arch_preboot_os(void);
 
 /*