SPL: SPI: Enhance spi_spl_load to match the other load functions

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/include/spl.h b/include/spl.h
index cf441a1..af94a82 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -69,7 +69,7 @@
 void spl_ymodem_load_image(void);
 
 /* SPI SPL functions */
-void spi_boot(void);
+void spl_spi_load_image(void);
 
 #ifdef CONFIG_SPL_BOARD_INIT
 void spl_board_init(void);