arm64: add spin table support

There was a hacky and one-off spin table support in tegra132.
Make this support generic for all arm64 chips.

BUG=chrome-os-partner:32082
BRANCH=None
TEST=Ran with and without secure monitor booting smp into the kernel.

Change-Id: I3425ab0c30983d4c74d0aa465dda38bb2c91c83b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 024dc3f3e5262433a56ed14934db837b5feb1748
Original-Change-Id: If12083a9afc3b2be663d36cfeed10f9b74bae3c8
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/218654
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9084
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/arch/arm64/Kconfig b/src/arch/arm64/Kconfig
index a070b90..2465bb1 100644
--- a/src/arch/arm64/Kconfig
+++ b/src/arch/arm64/Kconfig
@@ -20,4 +20,9 @@
 	default n
 	select RELOCATABLE_MODULES
 
+config ARCH_SPINTABLE
+	bool
+	default n
+	depends on ARCH_RAMSTAGE_ARM64
+
 source src/arch/arm64/armv8/Kconfig