fsl-vivante-kernel-driver-handler: Fix kernel name in variable assignment
If the graphics driver is built into the kernel, a warning is generated
for each i.MX kernel recipe, like this:
WARNING: /home/r60874/zeus/sources/meta-imx/meta-bsp/recipes-kernel/linux/linux-imx_5.4.bb: Variable key RPROVIDES_${KERNEL_PACKAGE_NAME}-base ( ${KERNEL_PACKAGE_NAME}-${KERNEL_VERSION}) replaces original key RPROVIDES_kernel-base ( kernel-module-imx-gpu-viv).
The problem is that the kernel name used in variables is no longer a
constant 'kernel', but is now parameterized:
https://github.com/openembedded/openembedded-core/commit/
6c8c899849d101fd1b86aad0b8eed05c7c785924
Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
