clk: mstar: Allow MStar clk drivers to be compile tested

Allow COMPILE_TEST to also build the MStar clk drivers
instead of only building them when ARCH_MSTARV7 is selected.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Suggested-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20210215115710.3762276-1-daniel@0x0f.com
[sboyd@kernel.org: Drop regmap select too]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: fifteenhex

drivers/clk/Makefile

@@ -95,7 +95,7 @@ obj-$(CONFIG_MACH_PIC32)		+= microchip/
 ifeq ($(CONFIG_COMMON_CLK), y)
 obj-$(CONFIG_ARCH_MMP)			+= mmp/
 endif
-obj-$(CONFIG_ARCH_MSTARV7)		+= mstar/
+obj-y					+= mstar/
 obj-y					+= mvebu/
 obj-$(CONFIG_ARCH_MXS)			+= mxs/
 obj-$(CONFIG_COMMON_CLK_NXP)		+= nxp/

drivers/clk/mstar/Kconfig

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config MSTAR_MSC313_MPLL
-	bool
-	select REGMAP
+	bool "MStar MPLL driver"
+	depends on ARCH_MSTARV7 || COMPILE_TEST
+	default ARCH_MSTARV7
 	select REGMAP_MMIO
+	help
+	  Support for the MPLL PLL and dividers block present on
+	  MStar/Sigmastar SoCs.