libc: change linking order to avoid over-stripping of symbols

At the moment libc gets linked, all unused functions get
stripped and the libqmsi gets linked but __assert_func is not
available.

Change-Id: I7fc2f8b9136f858023b3e983575869a2206ba9ce
Signed-off-by: Anas Nashif <anas.nashif@intel.com>