platform: stm: stm32wba65xx: enable non-secure access for SoC user OTPs

Enable non-secure accesses the SoC Users OTPs on stm32wba65xx targets.
TF-M does not use the SoC OTPs to store any secrets hence make them
available to the non-secure world.

Change-Id: I6c492c431eeaa79c0dc55f2000e3dc28cee239c2
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Author: etienne-lms

platform/ext/target/stm/common/stm32wbaxx/secure/target_cfg.c

@@ -75,6 +75,7 @@ const struct memory_region_limits memory_regions =
 #define TFM_NS_REGION_VENEER    3
 #define TFM_NS_REGION_PERIPH_1  4
 #define TFM_NS_REGION_PERIPH_2  5
+#define TFM_NS_REGION_PERIPH_3  6
 
 /* Define Peripherals NS address range for the platform */
 #define PERIPHERALS_BASE_NS_START (PERIPH_BASE_NS)
@@ -121,6 +122,13 @@ const struct sau_cfg_t sau_init_cfg[] = {
         (PACKAGE_BASE + 0xfff),
         TFM_FALSE,
     },
+    /* Configure the peripherals space 3 to access package information */
+    {
+        TFM_NS_REGION_PERIPH_3,
+        FLASH_OTP_BASE,
+        (FLASH_OTP_BASE + FLASH_OTP_SIZE - 1),
+        TFM_FALSE,
+    },
 };
 #ifdef TFM_DEV_MODE
 static __IO int once=0;