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H A Dimx8m_psci_common.cad6eb1951b986f30635025bbdf29e257b6b1e362 Wed Oct 26 08:38:53 UTC 2022 Shawn Guo <shawn.guo@linaro.org> fix(imx8m): update poweroff related SNVS_LPCR bits only

Function imx_system_off() writes SNVS_LPCR register to power off the SoC
without bit masking. This clears other bits like LPWUI_EN and breaks
the function of SoC wake-up using RTC alarm. Fix it by updating poweroff
related bits only.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Change-Id: If641af4dc1103c67e1a645c03bb36a5f56665aef