package/qt5location: fix musl compile (pthread_getname_np)

package/qt5location: fix musl compile (pthread_getname_np)

- pthread_getname_np not available with musl libc, add patch to disable
  usage for musl (patch inspired/ported from [1])

Fixes:

  - http://autobuild.buildroot.net/results/ed372a4a8e50d9e20be589eeda40c92888d709bc

  platform/default/thread.cpp: In function ‘std::string mbgl::platform::getCurrentThreadName()’:
  platform/default/thread.cpp:14:5: error: ‘pthread_getname_np’ was not declared in this scope; did you mean ‘pthread_setname_np’?
     14 |     pthread_getname_np(pthread_self(), name, sizeof(name));
        |     ^~~~~~~~~~~~~~~~~~
        |     pthread_setname_np

    [1] https://github.com/void-linux/void-packages/blob/e64dd67f43c409d2b2db08214084e842d92ad620/srcpkgs/qt5/patches/0014-musl-set_thread_name_np.patch

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
[yann.morin.1998@free.fr: add uClibc]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>