device/pnp_device: improve warning/error messages

Explicitly state that the assignment is missing in the devicetree. In
the case of the warnings, the missing assignments might not be an issue.

Change-Id: Ic0b2f19496c8b4cd6340b0b8a8d0155f8ad05a43
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38655
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/device/pnp_device.c b/src/device/pnp_device.c
index 81aa889..dc921e7 100644
--- a/src/device/pnp_device.c
+++ b/src/device/pnp_device.c
@@ -129,12 +129,12 @@
 		    (resource->index != PNP_IDX_IRQ0) &&
 		    (resource->index != PNP_IDX_IRQ1))
 			printk(BIOS_WARNING, "WARNING: %s %02lx %s size: "
-			       "0x%010llx not assigned\n", dev_path(dev),
+			       "0x%010llx not assigned in devicetree\n", dev_path(dev),
 			       resource->index, resource_type(resource),
 			       resource->size);
 		else
 			printk(BIOS_ERR, "ERROR: %s %02lx %s size: 0x%010llx "
-			       "not assigned\n", dev_path(dev), resource->index,
+			       "not assigned in devicetree\n", dev_path(dev), resource->index,
 			       resource_type(resource), resource->size);
 		return;
 	}