spl: change load_addr and entry_point to uintptr_t

Mainly a stylistic change: convert the load_addr and entry_point
fields of struct spl_image_info to uintptr_t (from ulong).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/spl.h

@@ -23,8 +23,8 @@
 struct spl_image_info {
 	const char *name;
 	u8 os;
-	ulong load_addr;
-	ulong entry_point;
+	uintptr_t load_addr;
+	uintptr_t entry_point;
 #if CONFIG_IS_ENABLED(LOAD_FIT)
 	void *fdt_addr;
 #endif
@@ -271,7 +271,10 @@ int spl_dfu_cmd(int usbctrl, char *dfu_alt_info, char *interface, char *devstr);
 int spl_mmc_load_image(struct spl_image_info *spl_image,
 		       struct spl_boot_device *bootdev);
 
-void bl31_entry(void);
+/**
+ * spl_invoke_atf - boot using an ARM trusted firmware image
+ */
+void spl_invoke_atf(struct spl_image_info *spl_image);
 
 /**
  * board_return_to_bootrom - allow for boards to continue with the boot ROM