drm/mediatek: Drop dependency on ARM

The recent attempt to make the MediaTek DRM driver build for non-ARM
compile tests made the driver unbuildable for arm64 platforms. Since
this is used on both ARM and arm64 platforms, just drop the dependency
on ARM.

Fixes: d2db0b8 ("drm/mediatek: Allow build with COMPILE_TEST=y")
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241029111309.737263-1-wenst@chromium.org
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>

Author: wens

drivers/gpu/drm/mediatek/Kconfig

@@ -2,7 +2,7 @@
 config DRM_MEDIATEK
 	tristate "DRM Support for Mediatek SoCs"
 	depends on DRM
-	depends on (ARCH_MEDIATEK && ARM) || COMPILE_TEST
+	depends on ARCH_MEDIATEK || COMPILE_TEST
 	depends on COMMON_CLK
 	depends on HAVE_ARM_SMCCC || COMPILE_TEST
 	depends on OF