arch/arm/cpu/armv7/omap-common/spl.c: Fix GCC 4.2 warnings

Fix:
spl.c: In function 'jump_to_image_no_args':
spl.c:103: warning: assignment makes pointer from integer without a cast
spl.c:105: warning: dereferencing type-punned pointer will break
strict-aliasing rules

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: sricharan <r.sricharan@ti.com>
Cc: Tom Rini <trini@ti.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/omap-common/spl.c

@@ -100,9 +100,10 @@ static void jump_to_image_no_args(void)
 	debug("image entry point: 0x%X\n", spl_image.entry_point);
 	/* Pass the saved boot_params from rom code */
 #if defined(CONFIG_VIRTIO) || defined(CONFIG_ZEBU)
-	image_entry = 0x80100000;
+	image_entry = (image_entry_noargs_t)0x80100000;
 #endif
-	image_entry((u32 *)&boot_params_ptr);
+	u32 boot_params_ptr_addr = (u32)&boot_params_ptr;
+	image_entry((u32 *)boot_params_ptr_addr);
 }
 
 void jump_to_image_no_args(void) __attribute__ ((noreturn));