iap140: Use clang to build

Explicitly set to build with clang (which will soon be
the default).

BUG=26283900
TEST=build abox_edge-eng

Change-Id: Iebaf3da424c968bedd8fd00d3150e4840e6280f7
1 file changed
tree: 73f1c9ee790bf2d3534c3bd79f4fce8908788eea
  1. peripheral/
  2. soc/