Add extern "C" around am_hal_secure_ota.h functions

Author: UbiJCC

targets/TARGET_Ambiq_Micro/TARGET_Apollo3/sdk/mcu/apollo3/hal/am_hal_secure_ota.h

@@ -210,6 +210,11 @@ typedef struct
     am_hal_ota_status_e status;
 } am_hal_ota_status_t;
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif //__cplusplus
+
 // pOtaDesc should be start of a flash page designated for OTA Descriptor
 // This call will erase the flash page, which will then be incrementally populated as OTA's are added
 // It will also initialize the OTAPOINTER to point to this descriptor, with LSB indicating it as invalid
@@ -224,5 +229,9 @@ uint32_t am_hal_ota_add(uint32_t ui32ProgamKey, uint8_t imageMagic, uint32_t *pI
 // Can be called anytime (generally after coming back from reset to check the status of OTA
 // Will be also used by sbl_main to identify list of OTA's left for it (would show up as PENDING)
 uint32_t am_hal_get_ota_status(uint32_t *pOtaDesc, uint32_t maxOta, am_hal_ota_status_t *pStatus);
+    
+#ifdef __cplusplus
+}
+#endif //__cplusplus
 
 #endif // AM_HAL_SECURE_OTA_H