Auto-generate runtime namespace

runtime apex provides bionic(libc/libm/libdl) libraries. But actually
they are supposed to be accessed via symlinks in /system/lib (i.e.
system namespace).

By amending soong not to emit those bionic libs as providing libs of
runtime apex, now runtime apex can be auto-generated by linkerconfig.

Bug: 144664390
Test: build / flash / boot
Change-Id: Idda42801a608e5fcb495bfccdd07ca6c0666a53d
3 files changed