TFTP errors

Created new errors, InternalFailure and
InvalidArgument, in Common.errors.yaml.
These errors are used in TFTP.interface.yaml.

Change-Id: I2aa3e7bf57b2562945efdd9efba19b4551a7c0b1
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/xyz/openbmc_project/Common/TFTP.interface.yaml b/xyz/openbmc_project/Common/TFTP.interface.yaml
index 0a4665a..9a1b061 100644
--- a/xyz/openbmc_project/Common/TFTP.interface.yaml
+++ b/xyz/openbmc_project/Common/TFTP.interface.yaml
@@ -13,3 +13,6 @@
           type: string
           description: >
             The TFTP Server IP Address.
+      errors:
+        - xyz.openbmc_project.Common.Error.InternalFailure
+        - xyz.openbmc_project.Common.Error.InvalidArgument