bionic-amd64-tf-m-build: Increase pyhsslms version

Change pyhsslms version from ==1.1.1 to ~=2.0.0, which matches the
version specified in requirements.txt in the TF-M repo.

Change-Id: I9b3d506eb4711b686f3fe506c449566fa5db96a3
Signed-off-by: Raef Coles <raef.coles@arm.com>
1 file changed