hal: renesas: rx: Fixes the build warning on I2C driver

Remove unuse variable on r_riic_rx source to avoid the warning
and include r_bsp_locking.h in the r_riic_rx130.c

Signed-off-by: Quy Tran <[email protected]>

Author: quytranpzz

drivers/rx/README

@@ -57,3 +57,8 @@ Patch List:
    Impacted files:
       drivers/rx/rdp/src/r_riic_rx/src/r_riic_rx.c
       drivers/rx/rdp/src/r_riic_rx/r_riic_rx_if.h
+
+   * Fix the build warnings in RIIC driver
+   Impacted files:
+      drivers/rx/rdp/src/r_riic_rx/src/r_riic_rx.c
+      drivers/rx/rdp/src/r_riic_rx/src/targets/rx130/r_riic_rx130.c

drivers/rx/rdp/src/r_riic_rx/src/r_riic_rx.c

@@ -1985,7 +1985,6 @@ static riic_return_t riic_after_gen_start_cond(riic_info_t * p_riic_info)
 
     /* Creates the register pointer for the specified RIIC channel. */
     volatile uint8_t * const piccr1_reg = RIIC_ICCR1_ADR(p_riic_info->ch_no);
-    volatile uint8_t * const picsr2_reg = RIIC_ICSR2_ADR(p_riic_info->ch_no);
 
     /* IIC mode? */
     switch (riic_api_info[p_riic_info->ch_no].N_Mode)
@@ -3719,7 +3718,6 @@ static void riic_all_reset(riic_info_t * p_riic_info)
 static void riic_clear_ir_flag(riic_info_t * p_riic_info)
 {
     uint8_t internal_flag = 0x00; /* Determines whether reinitialization is necessary. */
-    volatile uint8_t uctmp = 0x00;
 
     /* Creates the register pointer for the specified RIIC channel. */
     volatile uint8_t * const piccr1_reg = RIIC_ICCR1_ADR(p_riic_info->ch_no);

drivers/rx/rdp/src/r_riic_rx/src/targets/rx130/r_riic_rx130.c

@@ -31,6 +31,7 @@
 #if defined(BSP_MCU_RX130)
 
     #include "r_riic_rx_private.h"
+    #include "r_bsp_locking.h"
 
 /***********************************************************************************************************************
  Exported global variables (to be accessed by other files)