docs: pm: Add introduction section in system pm

Create a introduction section just like the others chapters.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2024-04-20 22:44:26 -07:00 committed by Alberto Escolar
commit 1aaf597e4f

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@ -3,6 +3,9 @@
System Power Management System Power Management
####################### #######################
Introduction
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The kernel enters the idle state when it has nothing to schedule. The kernel enters the idle state when it has nothing to schedule.
Enabling :kconfig:option:`CONFIG_PM` allows the kernel to call upon the Enabling :kconfig:option:`CONFIG_PM` allows the kernel to call upon the
power management subsystem to put an idle system into one of the supported power states. power management subsystem to put an idle system into one of the supported power states.