azure-pipelines-rpi: Use explicit regex

The intention of the commit 3580444 was
to also upload the .dtb files present in overlays/ folder.

By using .dtb* regex, unnecessary files found their way into the
artifacts. Use explicit regex in order to upload only files ending in
.dtb or .dtbo.

Signed-off-by: Alisa-Dariana Roman <[email protected]>
(cherry picked from commit 0e6471f)

Author: romandariana

azure-pipelines-rpi.yml

@@ -56,7 +56,7 @@ stages:
     - task: CopyFiles@2
       inputs:
         sourceFolder: '$(Agent.BuildDirectory)/s/arch/$(ARCH)/boot/dts'
-        contents: '$(Agent.BuildDirectory)/s/arch/$(ARCH)/boot/dts/overlays/?(*.dtb*)'
+        contents: '$(Agent.BuildDirectory)/s/arch/$(ARCH)/boot/dts/overlays/?(*.dtb|*.dtbo)'
         targetFolder: '$(Build.ArtifactStagingDirectory)'
     - task: CopyFiles@2
       inputs: