stm32mp1: update device tree files

The drivers are also updated to reflect the changes.
Set RCC as non-secure.

Change-Id: I568fa1f418355830ad1d4d1cdcdb910fb362231b
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/drivers/st/mmc/stm32_sdmmc2.c b/drivers/st/mmc/stm32_sdmmc2.c
index 05f5ae1..7445d88 100644
--- a/drivers/st/mmc/stm32_sdmmc2.c
+++ b/drivers/st/mmc/stm32_sdmmc2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2018-2019, STMicroelectronics - All Rights Reserved
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -667,15 +667,15 @@
 	cuint++;
 	sdmmc2_params.reset_id = fdt32_to_cpu(*cuint);
 
-	if ((fdt_getprop(fdt, sdmmc_node, "st,pin-ckin", NULL)) != NULL) {
+	if ((fdt_getprop(fdt, sdmmc_node, "st,use-ckin", NULL)) != NULL) {
 		sdmmc2_params.pin_ckin = SDMMC_CLKCR_SELCLKRX_0;
 	}
 
-	if ((fdt_getprop(fdt, sdmmc_node, "st,dirpol", NULL)) != NULL) {
+	if ((fdt_getprop(fdt, sdmmc_node, "st,sig-dir", NULL)) != NULL) {
 		sdmmc2_params.dirpol = SDMMC_POWER_DIRPOL;
 	}
 
-	if ((fdt_getprop(fdt, sdmmc_node, "st,negedge", NULL)) != NULL) {
+	if ((fdt_getprop(fdt, sdmmc_node, "st,neg-edge", NULL)) != NULL) {
 		sdmmc2_params.negedge = SDMMC_CLKCR_NEGEDGE;
 	}