iio: accel: mma9551_core: typo fix in RSC APP ID

Fix typo in Reset/Suspend/Clear Application ID definition.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Reported-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>