Revert "Revert "marlin_defconfig: remove CONFIG_BUS_AUTO_SUSPEND""

This reverts commit bbd4d404.

WLAN runtime suspend/resume is suspected of causing watchdog resets
and other symptoms such as jank and device freezes.
Disable WLAN runtime power management to see if these issues still
occur. There is a ~10 mA power regression with disabling runtime PM.

Bug: 32371978
Change-Id: I7db6a9f9c04e5e01dd28378d3e28b10c3d9540d9