[PATCH 3/3] CI/musca-b1: use LTS tf-m

We currently don't have coverage for trusted-firmware-m 2.1.x, which is
the LTS.  Since musca-b1 and musca-s1 are essentially the same, use b1
for the LTS coverage.

Signed-off-by: Jon Mason <[email protected]>
---
 ci/musca-b1.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ci/musca-b1.yml b/ci/musca-b1.yml
index 1437b8ab3764..c2c3a986dc97 100644
--- a/ci/musca-b1.yml
+++ b/ci/musca-b1.yml
@@ -6,6 +6,11 @@ header:
     - ci/base.yml
     - ci/meta-openembedded.yml
 
+local_conf_header:
+  version_for_ci: |
+    # For better CI coverage, use the LTS version of tf-m
+    PREFERRED_VERSION_trusted-firmware-m ?= "2.1.%"
+
 machine: musca-b1
 
 target:
-- 
2.50.1 (Apple Git-155)