soc/intel/tigerlake: Remove extra '_' from GPIO PIN name

Fix typo GPD__SLP_SUSB -> GPD_SLP_SUSB

Change-Id: I2beddb5665dc2f6a28b9c02e240b12da137c1b17
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45685
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/tigerlake/include/soc/gpio_soc_defs.h

@@ -240,7 +240,7 @@
 #define GPD11			182
 #define GPD_INPUT3VSEL		183
 #define GPD_SLP_LANB		184
-#define GPD__SLP_SUSB		185
+#define GPD_SLP_SUSB		185
 #define GPD_WAKEB		186
 #define GPD_DRAM_RESETB		187