Add a mips32r2_fp_xburst-eng lunch target.

This lunch target can be used with the Creative Ci20 MIPS32
development board.  It uses GCC instead of Clang, as the
latter causes a couple of test breakages on this device.

Bug: 26635783
Bug: 26636096
Change-Id: Ic7d4e428965c3935034c35f5120fe10f6d4533ad
4 files changed
tree: 4ea2b98a665a1c967eddb9604e08a7663b9b2614
  1. arm_krait/
  2. armv8/
  3. mips32r2_fp/
  4. mips32r2_fp_xburst/
  5. mips64r6/
  6. silvermont/