Initially, FramebufferVk::invalidateImpl() was very conservative and
always ended a render pass (if the framebuffer is part of the current
render pass).  This adversely affects PUBG Mobile, which invalidates
the depth buffer every frame, causing the render pass to be split.

Test: PUBG MOBILE on Android
Test: angle_white_box_tests --gtest_filter=VulkanPerformanceCounterTest.InvalidatingAndUsingDepthDoesNotBreakRenderPass/*
Test: angle_deqp_gles3_tests --gtest_filter=dEQP.GLES3/functional_fbo_invalidate_* --use-angle=vulkan
Bug: b/163854287
Change-Id: I343dee1db3ebaf039ff92557f9ef25b24bcdcc93
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2352627Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Charlie Lao <cclao@google.com>
Commit-Queue: Ian Elliott <ianelliott@google.com>