tty: serial: bcm63xx: bcmbca: Replace ARCH_BCM_63XX with ARCH_BCMBCA

Prepare for the BCM63138 ARCH_BCM_63XX migration to ARCH_BCMBCA. Make
SERIAL_BCM63XX depending on ARCH_BCMBCA.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

drivers/tty/serial/Kconfig

@@ -1099,8 +1099,8 @@ config SERIAL_TIMBERDALE
 config SERIAL_BCM63XX
 	tristate "Broadcom BCM63xx/BCM33xx UART support"
 	select SERIAL_CORE
-	depends on ARCH_BCM4908 || ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
-	default ARCH_BCM4908 || ARCH_BCM_63XX || BCM63XX || BMIPS_GENERIC
+	depends on ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+	default ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
 	help
 	  This enables the driver for the onchip UART core found on
 	  the following chipsets: