noble-amd64-hafnium: enable UTF-8 locale in noble-amd64-hafnium

Install and generate UTF-8 locales (C.UTF-8, en_US.UTF-8) and set
LANG/LC_ALL to en_US.UTF-8 so Jenkins renders Unicode output correctly
(e.g. commitlint symbols ⧗/✔).

Change-Id: I7c1895549a882e43f16e72d72e5dddff4b0f1cf8
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
1 file changed