mb/google/nissa/var/uldren: Modify reset_delay_ms for EKTH7D18

Modify reset_delay_ms from 300ms to 6ms for ELAN EKTH7D18.

BUG=b:285999032
BRANCH=firmware-nissa-15217.B
TEST=boot uldren to ChromeOS and touchscreen is workable.

Change-Id: Iffcddbe7735b7a837887dec68e1270c2af5f4556
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76417
Reviewed-by: Derek Huang <derekhuang@google.com>
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/brya/variants/uldren/overridetree.cb b/src/mainboard/google/brya/variants/uldren/overridetree.cb
index 973a6de..a491ab1 100644
--- a/src/mainboard/google/brya/variants/uldren/overridetree.cb
+++ b/src/mainboard/google/brya/variants/uldren/overridetree.cb
@@ -262,7 +262,7 @@
 				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
 				register "generic.detect" = "1"
 				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
-				register "generic.reset_delay_ms" = "300"
+				register "generic.reset_delay_ms" = "6"
 				register "generic.reset_off_delay_ms" = "1"
 				register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)"
 				register "generic.stop_delay_ms" = "300"