ppc4xx: Fix printf format warnings now visible with the updated format check

This patch fixes ppc4xx related printf format warning. Those warnings are
now visible since patch dc4b0b38d4aadf08826f6c31270f1eecd27964fd
[Fix printf errors.] by Andrew Klossner has been applied. Thanks, this is
really helpful.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/cpu/ppc4xx/tlb.c b/cpu/ppc4xx/tlb.c
index f44822d..24a9a9c 100644
--- a/cpu/ppc4xx/tlb.c
+++ b/cpu/ppc4xx/tlb.c
@@ -316,12 +316,12 @@
 				virt_addr += TLB_1KB_SIZE;
 			}
 		} else {
-			printf("ERROR: no TLB size exists for the base address 0x%0X.\n",
+			printf("ERROR: no TLB size exists for the base address 0x%llx.\n",
 				phys_addr);
 		}
 
 		if (rc != 0)
-			printf("ERROR: no TLB entries available for the base addr 0x%0X.\n",
+			printf("ERROR: no TLB entries available for the base addr 0x%llx.\n",
 				phys_addr);
 	}