nb/intel/i945/raminit.c: Fix formatted print

Change-Id: I7122988a1c88175a2e72c11bb95bfa434ce48ff2
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68104
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/northbridge/intel/i945/raminit.c

@@ -74,7 +74,7 @@ static __attribute__((noinline)) void do_ram_command(u32 command)
 
 static void ram_read32(uintptr_t offset)
 {
-	PRINTK_DEBUG("   RAM read: %08x\n", offset);
+	PRINTK_DEBUG("   RAM read: %" PRIxPTR "\n", offset);
 
 	read32p(offset);
 }