x86: acpi: Add a common routine to write WiFi info

Intel WiFi chips can use a common routine to write the information needed
by linux. Add an implementation of this.

Enable it for coral.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/chromebook_coral_defconfig b/configs/chromebook_coral_defconfig
index e1d0749..c9006e2 100644
--- a/configs/chromebook_coral_defconfig
+++ b/configs/chromebook_coral_defconfig
@@ -18,6 +18,7 @@
 CONFIG_INTEL_CAR_CQOS=y
 CONFIG_X86_OFFSET_U_BOOT=0xffe00000
 CONFIG_X86_OFFSET_SPL=0xffe80000
+CONFIG_INTEL_GENERIC_WIFI=y
 CONFIG_BOOTSTAGE=y
 CONFIG_SPL_BOOTSTAGE=y
 CONFIG_TPL_BOOTSTAGE=y