[OpenCL] opencl-c.h: read_image*(): sampler-less, and image{1,2}d_array_t...

[OpenCL] opencl-c.h: read_image*(): sampler-less, and image{1,2}d_array_t variants are OpenCL-1.2+, mark them as such

Summary:
Refer to [[ https://www.khronos.org/registry/OpenCL/specs/opencl-1.1.pdf#page=242 | `6.11.13.2 Built-in Image Functions` ]],
and [[ https://www.khronos.org/registry/OpenCL/specs/opencl-1.1.pdf#page=306 | `9.6.8 Image Read and Write Functions` ]] of the OpenCL 1.1 spec.

* There is no mention of `image1d_array_t` and `image2d_array_t` anywhere in the OpenCL 1.1 spec.
* All the `read_image{f,i,ui,h}()` functions, as of OpenCL 1.1 spec, have a second required parameter `sampler_t sampler`

Should have prevented the following regression:
https://redmine.darktable.org/issues/12493

Reviewers: yaxunl, Anastasia, echuraev, asavonic

Reviewed By: Anastasia

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D56646

llvm-svn: 351188