stm32mp1: activate MISC support in SPL

needed for RCC MISC driver and sysreset with syscon
in SPL

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/mach-stm32mp/Kconfig b/arch/arm/mach-stm32mp/Kconfig
index 7c04905..8a929fa 100644
--- a/arch/arm/mach-stm32mp/Kconfig
+++ b/arch/arm/mach-stm32mp/Kconfig
@@ -5,6 +5,7 @@
 	select SPL_CLK
 	select SPL_DM
 	select SPL_DM_SEQ_ALIAS
+	select SPL_DRIVERS_MISC_SUPPORT
 	select SPL_FRAMEWORK
 	select SPL_GPIO_SUPPORT
 	select SPL_LIBCOMMON_SUPPORT