mb/emulation: Remove fake devicetree.cb components

Change-Id: I31853e3ede786eb9e10704674e42dd56c3a48688
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Philipp Hug <philipp@hug.cx>
diff --git a/src/mainboard/emulation/qemu-aarch64/mainboard.c b/src/mainboard/emulation/qemu-aarch64/mainboard.c
index eb5c11d..e6da3a6 100644
--- a/src/mainboard/emulation/qemu-aarch64/mainboard.c
+++ b/src/mainboard/emulation/qemu-aarch64/mainboard.c
@@ -27,3 +27,5 @@
 	.name = "qemu_aarch64",
 	.enable_dev = mainboard_enable,
 };
+
+struct chip_operations mainboard_emulation_qemu_aarch64_ops = { };