x86: apl: Generate required ACPI tables

Add support for generating various ACPI tables for Apollo Lake. Add a few
S3 definitions that are needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/apollolake/Makefile b/arch/x86/cpu/apollolake/Makefile
index 3aa2a55..2ddf4af 100644
--- a/arch/x86/cpu/apollolake/Makefile
+++ b/arch/x86/cpu/apollolake/Makefile
@@ -16,6 +16,7 @@
 endif
 endif
 ifndef CONFIG_SPL_BUILD
+obj-y += acpi.o
 obj-y += fsp_s.o
 endif