Merge branch...

Merge branch 'TS28.541_Rel16_CR0489_Correct_the_description_for_GNBDUFunction_and_EP_NgC' into 'Integration_Rel16_SA5_137_YANG'

Ts28.541 rel16 cr0489 correct the description for gnbdu function and ep ng c

See merge request sa5/MnS!139