Travis-ci: added support for ppc64le (#682) (#683)

Added power support for the travis.yml file with ppc64le. This is part of the Ubuntu distribution for ppc64le. This helps us simplify testing later when distributions are re-building and re-releasing.

(cherry picked from commit 2d639d8)

Co-authored-by: Devendra <[email protected]>

Author: github-actions[bot]

.travis.yml

@@ -1,5 +1,9 @@
 language: go
 
+arch:
+  - AMD64
+  - ppc64le
+ 
 go:
   - tip