PM: sleep: Make pm_wakeup_clear() call more clear

PM: sleep: Make pm_wakeup_clear() call more clear

Move pm_wakeup_clear() to the same location as other functions that do
bookkeeping prior to suspend_prepare().

Since calling pm_wakeup_clear() is a prerequisite to setting up for
suspend and enabling functionalities of suspend (like aborting during
suspend), moving pm_wakeup_clear() higher up the call stack makes its
intent more clear and obvious that it is called prior to
suspend_prepare().

After this change, there is a slightly larger window when abort events
can be registered, but otherwise suspend functionality is the same.

Suggested-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Samuel Wu <wusamuel@google.com>
Link: https://patch.msgid.link/20250821004237.2712312-2-wusamuel@google.com
Reviewed-by: Saravana Kannan <saravanak@google.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>