Add a missing break.
Add a missing break.

Change-Id: I459bb15a59dbdae7619b108099f49c2a0c89ecc8
Reviewed-on: https://swiftshader-review.googlesource.com/3281
Tested-by: Ping-Hao Wu <a90583667cdd8fbccfa5901d85d03d47f1820d47@google.com>
Reviewed-by: Nicolas Capens <0612353e1fcebbfd4b302d9337447ca0cdfa9122@google.com>

bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,google/swiftshader,google/swiftshader