Inclusive language updates to class_linker.cc

Based on:
  https://source.android.com/setup/contribute/respectful-code

#inclusivefixit

Bug: 161336379
Bug: 161896447
Test: art/test.py --host --64 -r
Change-Id: Ic44dc1929075db26c0b9259fa0db70d2bc581157
1 file changed