clk: microchip: drop POLARFIRE from ARCH_MICROCHIP_POLARFIRE

This driver is used by non-polarfire devices now, and the ARCH_MICROCHIP
symbol has been defined for some time on RISCV so drop it without any
functional change.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260113-doing-surplus-dc45866f71d4@spud
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Author: ConchuOD

drivers/clk/microchip/Kconfig

@@ -5,8 +5,8 @@ config COMMON_CLK_PIC32
 
 config MCHP_CLK_MPFS
 	bool "Clk driver for PolarFire SoC"
-	depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
-	default ARCH_MICROCHIP_POLARFIRE
+	depends on ARCH_MICROCHIP || COMPILE_TEST
+	default y
 	depends on MFD_SYSCON
 	select AUXILIARY_BUS
 	select REGMAP_MMIO