clk: mediatek: don't select clk-mt8192 for all ARM64 builds

This option defaults to y for ARCH64 meaning it's built even if we don't
want anything related to mediatek. Make the default condition stricter
and only build it if ARCH_MEDIATEK is selected.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: Bartosz Golaszewski

drivers/clk/mediatek/Kconfig

@@ -820,7 +820,7 @@ config COMMON_CLK_MT8192
 	depends on ARM64 || COMPILE_TEST
 	select COMMON_CLK_MEDIATEK
 	select COMMON_CLK_MEDIATEK_FHCTL
-	default ARM64
+	default ARM64 && ARCH_MEDIATEK
 	help
 	  This driver supports MediaTek MT8192 basic clocks.