cmocka: Surround include info with code endcode
cmocka: Surround include info with code endcode

Doxygen makes list of includes hard to read when
it is not explicitly marked as code. Surround it
with code marks to improve readability.

Signed-off-by: Krzysztof Opasiak <8064eda6f94b3817252b7d7649cf754592f63500@samsung.com>
Reviewed-by: Andreas Schneider <5be00ddc76278cf6077f5047ca3384a88460c671@cryptomilk.org>

jamesmunns/CMocka,jamesmunns/CMocka,clibs/cmocka,dsch/cmocka,VladimirTyrin/cmocka,VladimirTyrin/cmocka,wingyplus/cmocka,dsch/cmocka,clibs/cmocka,JonathonReinhart/cmocka,wingyplus/cmocka,tyc/cmocka,tyc/cmocka,tyc/cmocka,JonathonReinhart/cmocka