drivers/fsl_pci_init: Fix compile warning

fsl_pci_init.c: In function 'fsl_pci_setup_inbound_windows':
fsl_pci_init.c:122: warning: comparison is always true due to limited range of data type

The check only makes sense if we are CONFIG_PHYS_64BIT

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

drivers/pci/fsl_pci_init.c

@@ -119,9 +119,11 @@ int fsl_pci_setup_inbound_windows(struct pci_region *r)
 	}
 #endif
 
+#ifdef CONFIG_PHYS_64BIT
 	if (sz && (((u64)gd->ram_size) < (1ull << 32)))
 		printf("Was not able to map all of memory via "
 			"inbound windows -- %lld remaining\n", sz);
+#endif
 
 	return r - rgn_base;
 }