feat(s32g274a): split early clock initialization

Initializing all early clocks before the MMU is enabled can impact boot
time. Therefore, splitting the setup into A53 clocks and peripheral
clocks can be beneficial, with the peripheral clocks configured after
fully initializing the MMU.

Change-Id: I19644227b66effab8e2c43e64e057ea0c8625ebc
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
5 files changed