fix(stm32mp1): remove old regulator framework for ssp

Remove the old regulator files that are no more
available.

Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Change-Id: Ib122e6a5b906e4a4b2ab529c6bdb0f6996704b79
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/tf-a/+/254885


Reviewed-by: CITOOLS <MDG-smet-aci-reviews@list.st.com>
Reviewed-by: CIBUILD <MDG-smet-aci-builds@list.st.com>

plat/st/stm32mp1/stm32mp1_ssp.mk

 #
-# Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -25,6 +25,8 @@ PLAT_BL_COMMON_SOURCES	+=	${XLAT_TABLES_LIB_SRCS}
 
 PLAT_BL_COMMON_SOURCES	+=	lib/cpus/aarch32/cortex_a7.S
 
+PLAT_BL_COMMON_SOURCES	+=	drivers/regulator/regulator_core.c
+
 PLAT_BL_COMMON_SOURCES	+=	drivers/st/uart/aarch32/stm32_console.S
 
 PLAT_BL_COMMON_SOURCES	+=	drivers/arm/tzc/tzc400.c				\
@@ -38,8 +40,6 @@ PLAT_BL_COMMON_SOURCES	+=	drivers/arm/tzc/tzc400.c				\
 				drivers/st/iwdg/stm32_iwdg.c				\
 				drivers/st/pmic/stm32mp_pmic.c				\
 				drivers/st/pmic/stpmic1.c				\
-				drivers/st/regulator/stm32mp_dummy_regulator.c		\
-				drivers/st/regulator/stm32mp_regulator.c		\
 				drivers/st/reset/stm32mp1_reset.c			\
 				plat/st/common/stm32mp_dt.c				\
 				plat/st/common/stm32mp_shres_helpers.c			\