Add support for building bison against musl

Generate musl headers with ./android_regen.sh --musl_sysroot /tmp/musl-sysroot

Bug: 190084016
Test: m out/soong/host/linux-x86/bin/bison with musl
Change-Id: I92a97f633609c28519383c6782acfd27c2123f04
49 files changed