imx-gpu-viv: Restore virtual/opencl-icd to PROVIDES
Since opencv depends on virtual/opencl-icd, restore virtual/opencl-icd to the
recipes provided so imx-gpu-viv is properly selected. Fixes:
```
ERROR: Nothing PROVIDES 'virtual/opencl-icd' (but /opt/work/upstream/sources/meta-openembedded/meta-oe/recipes-support/opencv/opencv_4.5.0.bb DEPENDS on or otherwise requires it). Close matches:
virtual/libc
```
Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
(cherry picked from commit
b7c4f94c72164a767987c4f76abb8c4037a49232)
