arm: qemu: Enable PRE_CONSOLE_BUFFER

Commit 608b80b5b855 ("riscv: qemu: Enable PRE_CONSOLE_BUFFER") enables
buffering console messages for QEMU RISC-V virtual machines so those
printed before the video console is available will still show up on the
display. Similarly, enable it for ARM virtual machines as well.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5c505e1..9332829 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1041,6 +1041,7 @@
 	imply VIDEO_BOCHS
 	imply SYS_WHITE_ON_BLACK
 	imply SYS_CONSOLE_IS_IN_ENV
+	imply PRE_CONSOLE_BUFFER
 
 config ARCH_RMOBILE
 	bool "Renesas ARM SoCs"