arm64: defconfig: Enable Rockchip extensions for Synopsys DW HDMI QP

Enable Rockchip specific extensions for Synopsys DesignWare HDMI
Quad-Pixel (QP) driver.  This is needed to provide HDMI output support
for the boards based on RK3588 SoC.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20241202-dw-hdmi-qp-rk-defconfig-v1-1-38757fc053d0@collabora.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>