dts: stm32mp1: bump to Linux kernel v5.6.10 DTS files

Synchronize with STM32MP15 DTS files from Linux kernel v5.6.10.

Changes made on DTS/DTSI file from Linux kernel v5.6.10:
- stm32mp151.dtsi: add

dts: stm32mp1: bump to Linux kernel v5.6.10 DTS files

Synchronize with STM32MP15 DTS files from Linux kernel v5.6.10.

Changes made on DTS/DTSI file from Linux kernel v5.6.10:
- stm32mp151.dtsi: add ETZPC node, declare PSCI v1.0.
- stm32mp157a-dk1.dts: disable RCC secure-status.
- stm32mp157c-dk2.dts: disable RCC secure-status.
- stm32mp157c-ed1.dts (included by ev1): disable RCC secure-status.
- Remove resources related to input DT bindings using explicit inline
comments as those are under Linux kernel GPLv2 licensing model.

ETZPC node useless in non-secure Linux kernel but needed by secure
world.

RCC node remains disabled for the secure side so that RCC TZ
hardening is disabled since mainline Linux kernel and U-Boot
do not support SCMI clocks and reset domains. IWDG1, ETZPC, STGEN
and CRYP1 devices are described to ease their later integration.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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