sb/intel: Fix pointer casts

Fix some compiler warnings due to pointer to integer conversions
with different size.
Required for 64bit ramstage.

Change-Id: Ibfb3cacf25adfb4a242d38e4ea290fdc3929a684
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/29875
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/southbridge/intel/i82801ix/hdaudio.c b/src/southbridge/intel/i82801ix/hdaudio.c
index 607604b..b4cee46 100644
--- a/src/southbridge/intel/i82801ix/hdaudio.c
+++ b/src/southbridge/intel/i82801ix/hdaudio.c
@@ -278,7 +278,7 @@
 	// NOTE this will break as soon as the Azalia get's a bar above
 	// 4G. Is there anything we can do about it?
 	base = res2mmio(res, 0, 0);
-	printk(BIOS_DEBUG, "Azalia: base = %08x\n", (u32)base);
+	printk(BIOS_DEBUG, "Azalia: base = %p\n", base);
 	codec_mask = codec_detect(base);
 
 	if (codec_mask) {