dt-bindings: pinctrl: renesas: Fix value of PSEL_MASK.

PSEL [4:0] is 5 bit bitfield of PmnPFS/PmnPFS_HA/PmnPFS_BY registers which
could have been modeled in C as:

struct PmnPFS_xx {
  union {
     u32 _;
     struct {
        unsigned irrevelant_here: 24;
        unsigned PSEL : 5;
     } fields;
  };
};

Thus mask value should be 0b11111 (0x1f) rather than 0b101, since it is
used as mask:

   ((psel)&PSEL_MASK) << PSEL_POS) /* Note: PSEL_POS = 24 */

in RA_PINCFG macro.

Based of 19.2.5 "Port mn Pin Function Select Register"  RA4M1 Group
Users's: Hardware and other RA Groups manuals.

This change is cherry-pick candidate for main.

Please Note It was _NOT_ tested on `arduino_uno_r4_minima` board

Signed-off-by: Piotr Rak <[email protected]>

Author: piotrrak

include/zephyr/dt-bindings/pinctrl/renesas/pinctrl-ra-common.h

@@ -10,7 +10,7 @@
 #define PORT4_POS  29
 #define PORT4_MASK 0x1
 #define PSEL_POS   24
-#define PSEL_MASK  0x5
+#define PSEL_MASK  0x1f
 #define PORT_POS   21
 #define PORT_MASK  0x7
 #define PIN_POS    17