i2c: brcmstb: Make the driver buildable on BMIPS_GENERIC

The BCM7xxx ARM and MIPS based SoCs share a similar I2C hardware block.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/Kconfig

@@ -398,7 +398,7 @@ config I2C_BCM_KONA
 
 config I2C_BRCMSTB
 	tristate "BRCM Settop I2C controller"
-	depends on ARCH_BRCMSTB || COMPILE_TEST
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
 	default y
 	help
 	  If you say yes to this option, support will be included for the