Revert "irqchip/imx-irqsteer: Handle runtime power management correctly"

This reverts commit fa180340 which is
commit 33b1c47d upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I18e7b6ef20d18a8c533823b0dcee52df8c621aa3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>