intelliactive: rework input register/unregister

Signed-off-by: Paul Reioux <reioux@gmail.com>

	modified:   drivers/cpufreq/cpufreq_intelliactive.c
I210f81404e00bc05a4e1a53fbd077eb37e692338

	modified:   drivers/cpufreq/cpufreq_intelliactive.c
Change-Id: Ia6c0609b461996edd5b3410123f5ab55ba4072c9