UPSTREAM: arch/x86: Define HPET_ADDRESS_OVERRIDE

Symbol defined in via/cx700 but also used elsewhere.

BUG=none
BRANCH=none
TEST=none

Change-Id: Id294d617d38a32be0cb7ee054283e471cc60f7a4
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: b433d26ef11b78dda353723ff7c8797d06f76f21
Original-Change-Id: I31d6043e71dea474de00f609b9609a628ecc6eb8
Original-Signed-off-by: Kysti Mlkki <kyosti.malkki@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/26510
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1075648
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index 1facfb9..8a87778 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -193,6 +193,9 @@
 	bool
 	default n
 
+config HPET_ADDRESS_OVERRIDE
+	def_bool n
+
 config HPET_ADDRESS
 	hex
 	default 0xfed00000 if !HPET_ADDRESS_OVERRIDE