net/bluetooth_mgmt/bnep && net/bluetooth_mgmt/rfcom : Fixed Warnings

net/bluetooth_mgmt/bnep/core.c:747:1: warning: return from incompatible pointer type [enabled by default]
net/bluetooth_mgmt/bnep/core.c:750:1: warning: return from incompatible pointer type [enabled by default]
net/bluetooth_mgmt/rfcomm/core.c:2231:1: warning: return from incompatible pointer type [enabled by default]
net/bluetooth_mgmt/rfcomm/core.c:2240:1: warning: return from incompatible pointer type [enabled by default]
driver/hid: Fixed Warnings
driver/input/touchscreen Fixed Warnings