Add missing string table entry for RVN Civil Action Unit Citation.

[dijksterhuis]

Defined here and used in the player info tab of the task roster

Mike-Force/mission/config/subconfigs/awards_config.hpp

Lines 331 to 340 in 72e4c12

	class rvn_civil_action_unit_citation
	{
	title = "STR_vn_mf_rvn_civil_action_unit_citation";
	desc = "Completed defend the meeting/ checkpoint";
	levels[] =
	{
	{"\vn\ui_f_vietnam\data\medals\vn_medal_a_15_01_c1.paa", "\vn\ui_f_vietnam\data\medals\vn_ribbon_a_15_01_c1.paa"},
	{"\vn\ui_f_vietnam\data\medals\vn_medal_a_15_01_c2.paa", "\vn\ui_f_vietnam\data\medals\vn_ribbon_a_15_01_c2.paa"},
	};
	};