util/sconfig: Remove unused devicetree keywords ESPI & LPC

The ESPI & LPC keywords were added for the zork program, but it was
found that they weren't needed, so they were never used.

BUG=None
TEST=Build

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I3a78afc55477d62eac8056e2ca4bcdd3ab12ea47
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56197
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/sconfig/sconfig.y b/util/sconfig/sconfig.y
index e60bd16..40c1295 100755
--- a/util/sconfig/sconfig.y
+++ b/util/sconfig/sconfig.y
@@ -21,7 +21,7 @@
 	uint64_t number;
 }
 
-%token CHIP DEVICE REGISTER ALIAS REFERENCE ASSOCIATION BOOL STATUS MANDATORY BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC CPU_CLUSTER CPU DOMAIN IRQ DRQ SLOT_DESC IO NUMBER SUBSYSTEMID INHERIT IOAPIC_IRQ IOAPIC PCIINT GENERIC SPI USB MMIO LPC ESPI GPIO FW_CONFIG_TABLE FW_CONFIG_FIELD FW_CONFIG_OPTION FW_CONFIG_PROBE PIPE
+%token CHIP DEVICE REGISTER ALIAS REFERENCE ASSOCIATION BOOL STATUS MANDATORY BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC CPU_CLUSTER CPU DOMAIN IRQ DRQ SLOT_DESC IO NUMBER SUBSYSTEMID INHERIT IOAPIC_IRQ IOAPIC PCIINT GENERIC SPI USB MMIO GPIO FW_CONFIG_TABLE FW_CONFIG_FIELD FW_CONFIG_OPTION FW_CONFIG_PROBE PIPE
 %%
 devtree: { cur_parent = root_parent; } | devtree chip | devtree fw_config_table;