input: Fix compilation errors on 32 bit machine
input: Fix compilation errors on 32 bit machine

Fix following with GCC version 4.8.2 (Debian 4.8.2-21):

  CC       profiles/input/bluetoothd-device.o
profiles/input/device.c: In function ‘uhid_send_feature_answer’:
profiles/input/device.c:232:8: error: format ‘%lu’ expects argument
  of type ‘long unsigned int’, but argument 3 has type ‘unsigned int’
   [-Werror=format=]
        len, sizeof(ev));
        ^
profiles/input/device.c: In function ‘uhid_send_input_report’:
profiles/input/device.c:274:8: error: format ‘%lu’ expects argument of
   type ‘long unsigned int’, but argument 3 has type ‘unsigned int’
   [-Werror=format=]
        len, sizeof(ev));
        ^

mapfau/bluez,mapfau/bluez,pkarasev3/bluez,pkarasev3/bluez,silent-snowman/bluez,pkarasev3/bluez,ComputeCycles/bluez,ComputeCycles/bluez,ComputeCycles/bluez,pstglia/external-bluetooth-bluez,mapfau/bluez,ComputeCycles/bluez,mapfau/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,pkarasev3/bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez