qdev: rename typedef qdev_resetfn() -> DeviceReset()

qdev: rename typedef qdev_resetfn() -> DeviceReset()

following the DeviceRealize and DeviceUnrealize typedefs,
this unify a bit the new QOM API.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180114020412.26160-2-f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit b850f664a1dbbc1ea27bef12cd251ee5da0bfe05)
*prereq for 0c53057adb
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>