dt: amd-seattle: remove Overdrive revision A0 support

Support for AMD Seattle silicon revision A0 is no longer relevant,
since we no longer have a driver for the network controller, and
the PCIe on these boards was very unreliable. So drop the DTS
description of the A0 version of the overdrive board.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: ardbiesheuvel

arch/arm64/boot/dts/amd/Makefile

@@ -1,3 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
-			amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb
+dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb