Clarify clGetKernelSubGroupInfo error codes (#743)

Return `CL_INVALID_VALUE` for any query to `clGetKernelSubGroupInfo`
that takes an input value that is `NULL` or has an invalid size.

Author: FranklandJack

api/opencl_runtime_layer.asciidoc

@@ -7819,8 +7819,10 @@ Otherwise, it returns one of the following errors:
     the <<kernel-subgroup-info-table,Kernel Object Subgroup Queries>> table
     and _param_value_ is not `NULL`.
   * {CL_INVALID_VALUE} if _param_name_ is
-    {CL_KERNEL_MAX_SUB_GROUP_SIZE_FOR_NDRANGE} and the size in bytes specified by
-    _input_value_size_ is not valid or if _input_value_ is `NULL`.
+    {CL_KERNEL_MAX_SUB_GROUP_SIZE_FOR_NDRANGE},
+    {CL_KERNEL_SUB_GROUP_COUNT_FOR_NDRANGE} or
+    {CL_KERNEL_LOCAL_SIZE_FOR_SUB_GROUP_COUNT} and the size in bytes specified
+    by _input_value_size_ is not valid or if _input_value_ is `NULL`.
   * {CL_INVALID_KERNEL} if _kernel_ is a not a valid kernel object.
   * {CL_OUT_OF_RESOURCES} if there is a failure to allocate resources required
     by the OpenCL implementation on the device.