clk: sunxi: Limit legacy clocks to 32-bit ARM

The sunxi legacy clocks were never compatible with any 64-bit SoC,
so there is no point in building them as part of a 64-bit ARM kernel.
They make even less sense being built in to a 64-bit RISC-V kernel.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220702190135.51744-1-samuel@sholland.org

drivers/clk/sunxi/Kconfig

 # SPDX-License-Identifier: GPL-2.0-only
 menuconfig CLK_SUNXI
 	bool "Legacy clock support for Allwinner SoCs"
-	depends on ARCH_SUNXI || COMPILE_TEST
+	depends on (ARM && ARCH_SUNXI) || COMPILE_TEST
 	default y
 
 if CLK_SUNXI