arm64: dts: rockchip: fix pinctrl sleep nodename for rk3399.dtsi

stable inclusion
from stable-5.10.53
commit 2e1f681b680c8086cfda715987201541f500afc1
bugzilla: 175574 https://gitee.com/openeuler/kernel/issues/I4DTUX

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2e1f681b680c8086cfda715987201541f500afc1

--------------------------------

[ Upstream commit a7ecfad4 ]

A test with the command below aimed at powerpc generates
notifications in the Rockchip arm64 tree.

Fix pinctrl "sleep" nodename by renaming it to "suspend"
for rk3399.dtsi

make ARCH=arm64 dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/powerpc/sleep.yaml
Signed-off-by: NJohan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20210126110221.10815-2-jbx6244@gmail.comSigned-off-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/boot/dts/rockchip/rk3399.dtsi

@@ -2342,7 +2342,7 @@
 			};
 		};
 
-		sleep {
+		suspend {
 			ap_pwroff: ap-pwroff {
 				rockchip,pins = <1 RK_PA5 1 &pcfg_pull_none>;
 			};