Disable ipsec and tethering module builds on postsubmit.

We are enabling continous postsubmit builds for AOSP modules. These
modules are not building at ToT at the moment; exclude them so we can
get a green postsubmit build for other modules.

Bug: 210694291
Test: run packages/modules/common/build/mainline_modules_x86_64.sh locally
Change-Id: Iea756639962e5c87a4ae5539890a9ab8909286c3

build/build_unbundled_mainline_module.sh

@@ -44,7 +44,8 @@ readonly -a DEFAULT_MODULES=(
   com.android.conscrypt
   com.android.extservices
   com.android.i18n
-  com.android.ipsec
+  # TODO(b/210694291): include ipsec module in the build
+  # com.android.ipsec
   com.android.media
   com.android.mediaprovider
   com.android.media.swcodec
@@ -55,7 +56,8 @@ readonly -a DEFAULT_MODULES=(
   com.android.runtime
   com.android.sdkext
   com.android.telephony
-  com.android.tethering
+  # TODO(b/210694291): include tethering module in the build
+  # com.android.tethering
   com.android.tzdata
   com.android.wifi
   test1_com.android.tzdata