clk: mpc512x: add backwards compat to the CCF code
clk: mpc512x: add backwards compat to the CCF code

extend the recently added COMMON_CLK platform support for MPC512x such
that it works with incomplete device tree data which lacks clock specs

Cc: Mike Turquette <6dab61939fc5e23761050a66932f032dceda5ebf@linaro.org>
Cc: Anatolij Gustschin <f79f5d5f0b8928b7f49f0262a90d53ad98a87c22@denx.de>
Cc: f99ef57ccac738b558d0fc2e44478b3c5def9522@lists.infradead.org
Cc: 624e0123bdcc7ea450e9efbcd399e8858e365d3e@lists.ozlabs.org
Signed-off-by: Gerhard Sittig <c9b3437932eed090edbebd577212b9961ce000fb@denx.de>
[f79f5d5f0b8928b7f49f0262a90d53ad98a87c22@denx.de: moved node macro definitions out of the function body]
Signed-off-by: Anatolij Gustschin <f79f5d5f0b8928b7f49f0262a90d53ad98a87c22@denx.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs