mb/hp/compaq_elite_8300_usdt: Add VBT

Extracted from a system running OEM BIOS v03.08 (latest as of now).

Build-tested and boots Linux (through SeaBIOS).

Command used:
intelvbttool --inlegacy --outvbt data.vbt

Change-Id: Ibd999d30d6e8fea1368afae67f4dc1c3039d3ae1
Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79430
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/mainboard/hp/compaq_elite_8300_usdt/Kconfig

@@ -7,6 +7,7 @@ config BOARD_SPECIFIC_OPTIONS
 	select HAVE_ACPI_TABLES
 	select HAVE_CMOS_DEFAULT
 	select HAVE_OPTION_TABLE
+	select INTEL_GMA_HAVE_VBT
 	select INTEL_INT15
 	select MAINBOARD_HAS_TPM1
 	select MAINBOARD_HAS_LIBGFXINIT