ARM: sti: always enable RESET_CONTROLLER

A lot of the sti device drivers require reset controller support,
but do not all have individual 'depends on RESET_CONTROLLER'
statements. Using 'select' here once avoids a lot of build errors
resulting from this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>

arch/arm/mach-sti/Kconfig

@@ -13,6 +13,7 @@ menuconfig ARCH_STI
 	select ARM_ERRATA_775420
 	select PL310_ERRATA_753970 if CACHE_L2X0
 	select PL310_ERRATA_769419 if CACHE_L2X0
+	select RESET_CONTROLLER
 	help
 	  Include support for STiH41x SOCs like STiH415/416 using the device tree
 	  for discovery