arm64: dts: ls1088a: add cpu idle support

ls1088a supports another cpu idle state which is ph20 which saves
more power when cpu is idle.
It was implemented through psci firmware.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Yuantian Tang 2017-08-07 09:54:38 +08:00 • committed by Shawn Guo
commit 5334e1a249