mb/google/rex: Rename touchscreen signals as per latest Rex schematics

Touchscreen signals were renamed for Rex schematics dated 21st Dec'22.
This CL fixes the comments for those signals.

BUG=b:263411413
TEST=None required (changed comments only)

Signed-off-by: Eran Mitrani <mitrani@google.com>
Change-Id: Ic40ef943d199d9f4a2bec9c0e6d4820224ef6adc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
diff --git a/src/mainboard/google/rex/variants/rex0/gpio.c b/src/mainboard/google/rex/variants/rex0/gpio.c
index 23732f2..5a854ba 100644
--- a/src/mainboard/google/rex/variants/rex0/gpio.c
+++ b/src/mainboard/google/rex/variants/rex0/gpio.c
@@ -94,9 +94,9 @@
 	/* GPP_B23 : [] ==> WWAN_CONFIG0 */
 	PAD_CFG_GPI_LOCK(GPP_B23, NONE, LOCK_CONFIG),
 
-	/* GPP_C00 : [] ==> EN_PP3300_TCHSCR */
+	/* GPP_C00 : [] ==> EN_TCHSCR_PWR */
 	PAD_CFG_GPO(GPP_C00, 0, DEEP),
-	/* GPP_C01 : [] ==> USI_RST_L */
+	/* GPP_C01 : [] ==>  SOC_TCHSCR_RST_L */
 	PAD_CFG_GPO(GPP_C01, 0, DEEP),
 	/* GPP_C02 : SOC_TCHSCR_SPI_INT_STRAP ==> Component NC */
 	PAD_NC(GPP_C02, NONE),
@@ -257,15 +257,15 @@
 	PAD_CFG_NF(GPP_F12, NONE, DEEP, NF5),
 	/* GPP_F13 : GSPI1_SOC_DI_FPMCU_DO_LS */
 	PAD_CFG_NF(GPP_F13, NONE, DEEP, NF5),
-	/* GPP_F14 : GSPI_SOC_DO_TCHSCR_DI */
+	/* GPP_F14 : GSPI0_SOC_DO_TCHSCR_DI */
 	PAD_CFG_NF(GPP_F14, NONE, DEEP, NF8),
-	/* GPP_F15 : [] ==> GSPI_SOC_DI_TCHSCR_DO */
+	/* GPP_F15 : [] ==> GSPI0_SOC_DI_TCHSCR_DO */
 	PAD_CFG_NF(GPP_F15, NONE, DEEP, NF8),
-	/* GPP_F16 : [] ==> GSPI_SOC_TCHSCR_CLK */
+	/* GPP_F16 : [] ==> GSPI0_SOC_TCHSCR_CLK */
 	PAD_CFG_NF(GPP_F16, NONE, DEEP, NF8),
 	/* GPP_F17 : [] ==> GSPI1_SOC_CS_L */
 	PAD_CFG_NF(GPP_F17, NONE, DEEP, NF5),
-	/* GPP_F18 : [] ==> GSPI_SOC_TCHSCR_CS_L */
+	/* GPP_F18 : [] ==> GSPI0_SOC_TCHSCR_CS_L */
 	PAD_CFG_NF(GPP_F18, NONE, DEEP, NF8),
 	/* GPP_F19 : [] ==> GPP_F19_STRAP */
 	PAD_NC(GPP_F19, NONE),