Merge "Create a soong module for ndk_system STL headers" into main am: 63e2c5671e

Original change: https://android-review.googlesource.com/c/platform/prebuilts/ndk/+/2744135

Change-Id: Ia48c843684232517ec0f506fc4230eac72c7f5cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>