build.sh: Copy vmlinux in images directory

To preserve vmlinux for dump usecases for corresponding images bins.

Signed-off-by: Anurag Pateriya <apateriy@qti.qualcomm.com>

Author: apateriy-qcom

build.sh

@@ -205,3 +205,7 @@ else
 fi
 
 echo "Build completed successfully. Images are in $IMAGES_OUTPUT."
+
+cp "$KERNEL_BUILD_ARTIFACTS/vmlinux" "$IMAGES_OUTPUT/vmlinux"
+echo "Copied vmlinux corresponding into $IMAGES_OUTPUT folder."
+