i2c: i2c-sh_mobile kconfig update for SH-Mobile ARM

Update the Kconfig entry for the i2c-sh_mobile driver to
enable build on SH-Mobile ARM platforms

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/i2c/busses/Kconfig

@@ -529,7 +529,7 @@ config I2C_SH7760
 
 config I2C_SH_MOBILE
 	tristate "SuperH Mobile I2C Controller"
-	depends on SUPERH
+	depends on SUPERH || ARCH_SHMOBILE
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Renesas SH-Mobile processor.