thermal: rcar_gen3: Use lowercase hex constants

The style of the driver is to use lowercase hex constants, correct the
few outlines.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250305174631.4119374-2-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Author: Niklas Söderlund

drivers/thermal/renesas/rcar_gen3_thermal.c

@@ -21,11 +21,11 @@
 /* Register offsets */
 #define REG_GEN3_IRQSTR		0x04
 #define REG_GEN3_IRQMSK		0x08
-#define REG_GEN3_IRQCTL		0x0C
+#define REG_GEN3_IRQCTL		0x0c
 #define REG_GEN3_IRQEN		0x10
 #define REG_GEN3_IRQTEMP1	0x14
 #define REG_GEN3_IRQTEMP2	0x18
-#define REG_GEN3_IRQTEMP3	0x1C
+#define REG_GEN3_IRQTEMP3	0x1c
 #define REG_GEN3_THCTR		0x20
 #define REG_GEN3_TEMP		0x28
 #define REG_GEN3_THCODE1	0x50
@@ -38,9 +38,9 @@
 #define REG_GEN4_THSFMON00	0x180
 #define REG_GEN4_THSFMON01	0x184
 #define REG_GEN4_THSFMON02	0x188
-#define REG_GEN4_THSFMON15	0x1BC
-#define REG_GEN4_THSFMON16	0x1C0
-#define REG_GEN4_THSFMON17	0x1C4
+#define REG_GEN4_THSFMON15	0x1bc
+#define REG_GEN4_THSFMON16	0x1c0
+#define REG_GEN4_THSFMON17	0x1c4
 
 /* IRQ{STR,MSK,EN} bits */
 #define IRQ_TEMP1		BIT(0)
@@ -57,11 +57,11 @@
 /* THSCP bits */
 #define THSCP_COR_PARA_VLD	(BIT(15) | BIT(14))
 
-#define CTEMP_MASK	0xFFF
+#define CTEMP_MASK	0xfff
 
 #define MCELSIUS(temp)	((temp) * 1000)
-#define GEN3_FUSE_MASK	0xFFF
-#define GEN4_FUSE_MASK	0xFFF
+#define GEN3_FUSE_MASK	0xfff
+#define GEN4_FUSE_MASK	0xfff
 
 #define TSC_MAX_NUM	5