imx8: Configure SNVS

Add a module to configure the tamper and secure violation of
the SNVS using the SCU API.

The module also adds some commands:
 - snvs_cfg: Configure the SNVS HP and LP registers
 - snvs_dgo_cfg: Configure the SNVS DGO bloc if present (8QXP)
 - tamper_pin_cfg: Change the configuration of the tamper pins
 - snvs_clear_status: Allow to write to LPSR and LPTDSR to clear
   status bits

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8/sci/sci.h b/arch/arm/include/asm/arch-imx8/sci/sci.h
index 179037a..05f736f 100644
--- a/arch/arm/include/asm/arch-imx8/sci/sci.h
+++ b/arch/arm/include/asm/arch-imx8/sci/sci.h
@@ -109,6 +109,7 @@
 
 /* PAD API */
 int sc_pad_set(sc_ipc_t ipc, sc_pad_t pad, u32 val);
+int sc_pad_get(sc_ipc_t ipc, sc_pad_t pad, uint32_t *val);
 
 /* SMMU API */
 int sc_rm_set_master_sid(sc_ipc_t ipc, sc_rsrc_t resource, sc_rm_sid_t sid);
@@ -128,5 +129,8 @@
 int sc_seco_get_mp_sign(sc_ipc_t ipc, sc_faddr_t msg_addr,
 			u16 msg_size, sc_faddr_t dst_addr, u16 dst_size);
 int sc_seco_secvio_dgo_config(sc_ipc_t ipc, u8 id, u8 access, u32 *data);
+int sc_seco_secvio_config(sc_ipc_t ipc, u8 id, u8 access,
+			  u32 *data0, u32 *data1, u32 *data2, u32 *data3,
+			  u32 *data4, u8 size);
 
 #endif