clk: meson: axg-audio does not require syscon

The axg audio clock controller uses regmap mmio, not syscon.

Fixes: 1cd50181750f ("clk: meson: axg: add the audio clock controller driver")
Signed-off-by: Jerome Brunet <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://lkml.kernel.org/r/[e-mail]

drivers/clk/meson/Kconfig

···
 	tristate "Meson AXG Audio Clock Controller Driver"
 	depends on COMMON_CLK_AXG
 	select COMMON_CLK_AMLOGIC_AUDIO
-	select MFD_SYSCON
+	select REGMAP_MMIO
 	help
 	  Support for the audio clock controller on AmLogic A113D devices,
 	  aka axg, Say Y if you want audio subsystem to work.