Changes:
- Update BBMASK definition in template to avoid new warning.
- Rename linux-linaro-qcomlt bbappend to use a wildcard to cover both
the new 5.4 kernel in meta-qcom and still the older 4.x kernels in
that BSP that a user might configure instead.
Bug-AGL: SPEC-2932
Change-Id: I8a735a38409822e7069cc84bc2a42c06d351a278 Signed-off-by: Scott Murray <scott.murray@konsulko.com>