COMPMID-959: Add FP32 support to GLES GEMMConvolution

The following kernels were supposed to have FP32 support but this was not the
case because of bugs and missing shaders:

- GCCol2Im
- GCIm2Col
- GCWeightsReshape

Change-Id: Ie6ea464db0612757c71c3d40874e7bb0d60f170a
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/127572
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
4 files changed