This change 7bbe497a accidentally disabled support for GL_EXT_buffer_storage extension for the Vulkan backend, enable it again. Bug: angleproject:5056 Tests: angle_end2end_tests --gtest_filter=BufferStorageTestES3*Vulkan Change-Id: If4da2fe2c3e8b098875c89643d366f15fd0ea8b2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2519875 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
