Remove Conflicts for kernel-core

Now that the _gasket-driver_ package is an "install only" package
(meaning multiple versions can be installed simultaneously), the
conflict with _kernel-core_ no longer makes sense.  Since
_gasket-driver_ will never "update," the old version will not be
uninstalled, and thus will continuously prevent installing a new kernel
version.

Removing the conflict does open up the possibility of having a new
kernel version installed without a corresponding _gasket-driver_
package.  I think the CI pipeline is working well enough, though, that
this is unlikely.  I would much rather keep the "install only" feature,
so that booting into an older kernel will work as expected.

gasket-driver.spec

@@ -9,7 +9,7 @@
 
 Name:           gasket-driver
 Version:        0.0.git%{git_revision}
-Release:        4.k%{kernel_version}%{?dist}
+Release:        5.k%{kernel_version}%{?dist}
 Summary:        The Coral Gasket Driver allows usage of the Coral EdgeTPU on Linux systems
 
 License:        GPL-2.0
@@ -21,7 +21,6 @@ Patch1:         0002-Update-gasket_page_table.c-Fix-MODULE_IMPORT_NS.patch
 BuildRequires:  kernel-devel
 Provides:       installonlypkg(kernel-module)
 Requires:       kernel-core == %{kernel_version}
-Conflicts:      kernel-core > %{kernel_version}
 Requires(post): kmod
 
 %description