Android 11 compilation for Cortex-A57

[Crazy Fly]

I am compiling Android 11 for Cortext-A57, i.e. 

TARGET_CPU_VARIANT=cortex-a57

And getting error for all the precompiled vndks:

..

FAILED: out/soong/build.ninja

out/soong/.bootstrap/bin/soong_build -t -l out/.module_paths/Android.bp.list -b out/soong -n out -d out/soong/build.ninja.d -globFile out/soong/.bootstrap/build-globs.ninja -o out/soong/build.ninja Android.bp

..

error: prebuilts/vndk/v29/arm64/Android.bp:1478:1: module "android.hardware....@2.2.vndk.29.arm64" variant "android_vendor.29": field "arch.arm.cortex_a57" does not exist

error: prebuilts/vndk/v29/arm64/Android.bp:1478:1: module "android.hardware....@2.2.vndk.29.arm64" variant "android_vendor.29": field "arch.arm.cortex_a57" does not exist

error: prebuilts/vndk/v29/arm64/Android.bp:1478:1: module "android.hardware....@2.2.vndk.29.arm64" variant "android_vendor.29": field "arch.arm.cortex_a57" does not exist

error: prebuilts/vndk/v29/arm64/Android.bp:1478:1: module "android.hardware....@2.2.vndk.29.arm64" variant "android_vendor.29": field "arch.arm.cortex_a57" does not exist

error: prebuilts/vndk/v29/arm64/Android.bp:1478:1: module "android.hardware....@2.2.vndk.29.arm64" variant "android_vendor.29": field "arch.arm.cortex_a57" does not exist

..

 This are few of of the lines but happening for each of the objects in /prebuilts/vndk/*

Any suggestion to resolve the issue?