refactor(ti): move TI SCI and sec proxy to drivers

Prepare to support more devices and abstract TI SCI and it's transport
layers. This refactor will help keep things clean when new ipc drivers
get added.

Change-Id: I05673f379b1398c0b6a2bd9e1b5392165d12f151
Signed-off-by: Dhruva Gole <d-gole@ti.com>

drivers/ti/ti_sci/ti_sci.h

@@ -2,7 +2,7 @@
  * Texas Instruments System Control Interface API
  *   Based on Linux and U-Boot implementation
  *
- * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/
+ * Copyright (C) 2018-2025 Texas Instruments Incorporated - https://www.ti.com/
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */

drivers/ti/ti_sci/ti_sci_protocol.h

@@ -5,7 +5,7 @@
  * The system works in a message response protocol
  * See: http://processors.wiki.ti.com/index.php/TISCI for details
  *
- * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
+ * Copyright (C) 2018-2025 Texas Instruments Incorporated - https://www.ti.com/
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */

plat/ti/k3/common/plat_common.mk

@@ -51,8 +51,8 @@ include lib/xlat_tables_v2/xlat_tables.mk
 
 PLAT_INCLUDES		+=	\
 				-I${PLAT_PATH}/include			\
-				-I${PLAT_PATH}/common/drivers/sec_proxy	\
-				-I${PLAT_PATH}/common/drivers/ti_sci	\
+				-Idrivers/ti/ipc			\
+				-Idrivers/ti/ti_sci			\
 
 K3_CONSOLE_SOURCES	+=	\
 				drivers/ti/uart/aarch64/16550_console.S	\
@@ -71,10 +71,10 @@ K3_PSCI_SOURCES		+=	\
 				${PLAT_PATH}/common/k3_psci.c		\
 
 K3_SEC_PROXY_SOURCES	+=	\
-				${PLAT_PATH}/common/drivers/sec_proxy/sec_proxy.c \
+				drivers/ti/ipc/sec_proxy.c		\
 
 K3_TI_SCI_SOURCES	+=	\
-				${PLAT_PATH}/common/drivers/ti_sci/ti_sci.c \
+				drivers/ti/ti_sci/ti_sci.c		\
 
 PLAT_BL_COMMON_SOURCES	+=	\
 				lib/cpus/aarch64/cortex_a53.S		\