Update the parameter checking performed within ValidateTexImage2D() to
pass the following tests:

dEQP-GLES2.functional.negative_api.texture.teximage2d_invalid_format
dEQP-GLES2.functional.negative_api.texture.teximage2d_invalid_internalformat
dEQP-GLES2.functional.negative_api.texture.texsubimage2d_invalid_type

Bug: angleproject:3250
Bug: angleproject:3251
Test: angle_deqp_gles2_tests --use-angle=vulkan
Change-Id: I4d9be4fe0a9b377e61e3132db262750e6285464b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1534519
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>