Bluetooth: Correct debug print specifier for u16 objects

Some functions print u16 objects as "0xc03" others as "0x0c03". Patch
ensures that opcodes printed are the in the same format and consistent
with bluetooth code.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>