only update e_bl_val directly in backlight_level_set if not using randr backlight
only update e_bl_val directly in backlight_level_set if not using randr backlight

this is the "real" backlight value, so it needs to always be accurate. since randr backlight sets this value elsewhere, only use those real updates to ensure genuine values

rvandegrift/e,FlorentRevest/Enlightenment,rvandegrift/e,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tasn/enlightenment,FlorentRevest/Enlightenment