Update git submodules

* Update platform/bionic from branch 'master'
  to 14e01ac5e221c7e27dc0f7bb7e0db8e7aade2f21
  - Merge "Tweak linux_glibc properties for musl builds in bionic"
  - Tweak linux_glibc properties for musl builds in bionic
    
    For convenience, builds against musl libc currently use the
    linux_glibc properties because they are almost always linux-specific
    and not glibc-specific.  In preparation for removing this hack,
    tweak the linux_glibc properties by either moving them to host_linux,
    which will apply to linux_glibc, linux_musl and linux_bionic, or
    by setting appropriate musl or linux_musl properties.  Properties
    that must not be repeated while musl uses linux_musl and also still
    uses the linux_glibc properties are moved to glibc properties, which
    don't apply to musl.  Whether these stay as glibc properties or get
    moved back to linux_glibc later once the musl hack is removed is TBD.
    
    Bug: 223257095
    Test: m checkbuild
    Test: m USE_HOST_MUSL=true host-native
    Change-Id: I809bf1ba783dff02f6491d87fbdc9fa7fc0975b0