Don't exclude docs build from using prebuilts

Even though it doesn't have google modules in PRODUCT_PACKAGES,
the docs build wants to use prebuilts when the rest of the branch
does.

Bug: 230478310
Test: m docs (inspect MODULE_BUILD_FROM_SOURCE)
Change-Id: I1d67f4099e9fdc5fbaeeb0bf0fce80aa91c05eb5
diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index 28181eb..ae8204c 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -93,13 +93,13 @@
 
 ifneq (,$(MODULE_BUILD_FROM_SOURCE))
   # Keep an explicit setting.
-else ifeq (,$(filter sdk win_sdk sdk_addon,$(MAKECMDGOALS))$(findstring com.google.android.conscrypt,$(PRODUCT_PACKAGES)))
+else ifeq (,$(filter docs sdk win_sdk sdk_addon,$(MAKECMDGOALS))$(findstring com.google.android.conscrypt,$(PRODUCT_PACKAGES)))
   # Prebuilt module SDKs require prebuilt modules to work, and currently
   # prebuilt modules are only provided for com.google.android.xxx. If we can't
   # find one of them in PRODUCT_PACKAGES then assume com.android.xxx are in use,
   # and disable prebuilt SDKs. In particular this applies to AOSP builds.
   #
-  # However, sdk/win_sdk/sdk_addon builds might not include com.google.android.xxx
+  # However, docs/sdk/win_sdk/sdk_addon builds might not include com.google.android.xxx
   # packages, so for those we respect the default behavior.
   MODULE_BUILD_FROM_SOURCE := true
 else ifneq (,$(PRODUCT_MODULE_BUILD_FROM_SOURCE))