Convert DEVICE_ATTR uses to DEVICE_ATTR_RO where possible.

Done with perl script:

$ git grep -w --name-only DEVICE_ATTR | \
  xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IRUGO\s*|\s*0444\s*)\)?\s*,\s*\1_show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(\1)/g; print;}'
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Acked-by: NSagi Grimberg <sagi@grimberg.me>
Acked-by: NZhang Rui <rui.zhang@intel.com>
Acked-by: NHarald Freudenberger <freude@linux.vnet.ibm.com>
Acked-by: NJani Nikula <jani.nikula@intel.com>
Acked-by: NCorey Minyard <cminyard@mvista.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>