[ Upstream commit4b80294fb5] There was a symbol listed in the powercap.h file that was not implemented. Implement it with a stub return of 0. Programs like SWIG require that functions that are defined in the headers be implemented. Fixes:c2294c1496("cpupower: Introduce powercap intel-rapl library and powercap-info command") Suggested-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com> Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>