gbuild: WinResTarget: fix dep-target dependencies:
gbuild: WinResTarget: fix dep-target dependencies:

Windows specific fallout of 8b5a984d45005d3df1c89eae897d6e04612625d8,
similar to 236055746ffe92ce3b2a7a9316b1083da046deb9; can be observed by
building with "make check" from scratch, on the "subsequentcheck" target
one res file depends on some lngconvex executable by way of a custom
target in shell, which causes udkapi to rebuild itself before the make
restart.

Change-Id: I14f370a66f4ac5088da4af7eceede09f5a6bae84

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core