CL/Vulkan: Enable OpenCL kernel printf in logcat Added `__android_log_write` for kernel print output buffer in case of android build Bug: angleproject:433980940 Change-Id: I4eac408076c3b4d804949724eff439137172fa54 Signed-off-by: hoonee.cho <hoonee.cho@samsung.com> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6981095 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Austin Annestrand <a.annestrand@samsung.com>