core177: ship u-boot-mkimage

this is linked against openssl-1.1 on older installations and was not shipped with core175

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

diff --git a/config/rootfiles/core/177/filelists/aarch64/u-boot-mkimage b/config/rootfiles/core/177/filelists/aarch64/u-boot-mkimage
new file mode 120000 (symlink)
index 0000000..8606a89
--- /dev/null
+++ b/config/rootfiles/core/177/filelists/aarch64/u-boot-mkimage
@@ -0,0 +1 @@
+../../../../common/aarch64/u-boot-mkimage
\ No newline at end of file