riscv: dts: Change the macro name of prci in each device node

We currently change the macro name for fu540 and fu740 by adding the
prefix respectively, these marcos are referenced by some device nodes,
they should be modified as well.

Signed-off-by: Zong Li <zong.li@sifive.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/db92d209fa700f7da8bc8028083476fcc138d80e.1646388139.git.zong.li@sifive.com


Signed-off-by: Stephen Boyd <sboyd@kernel.org>