refactor(nxp-clk): organize early clocks in groups

This reduces the length of the s32cc_init_early_clks function and offers
space for more early clocks to be added.

Change-Id: I0d11b97779433a6b15cd76c36aefbb7b92381067
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
1 file changed