feat(stm32mp1): register fixed regulator

Register fixed regulator in BL2.

Change-Id: I24292f549b2cd24fb717fbb68eb95af7aa68e3b9
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
diff --git a/plat/st/stm32mp1/bl2_plat_setup.c b/plat/st/stm32mp1/bl2_plat_setup.c
index 157efec..bac77bb 100644
--- a/plat/st/stm32mp1/bl2_plat_setup.c
+++ b/plat/st/stm32mp1/bl2_plat_setup.c
@@ -15,6 +15,7 @@
 #include <drivers/generic_delay_timer.h>
 #include <drivers/mmc.h>
 #include <drivers/st/bsec.h>
+#include <drivers/st/regulator_fixed.h>
 #include <drivers/st/stm32_iwdg.h>
 #include <drivers/st/stm32_uart.h>
 #include <drivers/st/stm32mp1_clk.h>
@@ -271,6 +272,10 @@
 	}
 
 skip_console_init:
+	if (fixed_regulator_register() != 0) {
+		panic();
+	}
+
 	if (dt_pmic_status() > 0) {
 		initialize_pmic();
 		print_pmic_info_and_debug();