Merge pull request #9453 from u-blox/requirement_update

mbed-host-tests minimum requirement set

Author: Cruz Monrreal

requirements.txt

@@ -14,7 +14,7 @@ Jinja2>=2.7.3,<=2.10
 intelhex>=1.3,<=2.2.1
 intervaltree>=2,<3
 mbed-ls>=1.5.1,<1.7
-mbed-host-tests>=1.1.2,<=1.5
+mbed-host-tests>=1.4.4,<=1.5
 mbed-greentea>=0.2.24,<=1.5
 beautifulsoup4>=4,<=4.6.3
 fuzzywuzzy>=0.11,<=0.17