version bump to v1.7.3

Signed-off-by: Nick Xie <[email protected]>

Author: numbqq

README.md

@@ -5,7 +5,7 @@
 
 [![Documentation](https://img.shields.io/badge/Documentation-Reference-blue.svg)](https://docs.khadas.com/products/sbc/common/development/build-ubuntu)
 [![Licence](https://img.shields.io/badge/Licence-GPL--2.0-brightgreen.svg)](https://github.com/khadas/fenix/blob/master/LICENSE)
-[![Version](https://img.shields.io/badge/Version-v1.7.2-blue.svg)](https://github.com/khadas/fenix/tree/v1.7.2)
+[![Version](https://img.shields.io/badge/Version-v1.7.3-blue.svg)](https://github.com/khadas/fenix/tree/v1.7.3)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://github.com/khadas/fenix/pulls)
 
 Supported build host:

config/version

@@ -1 +1 @@
-VERSION=1.7.2
+VERSION=1.7.3