Update gitignore with more build files
Update gitignore with more build files

Signed-off-by: Michael Neuling <7b0ab45a730e48a69239010b5b8fe5fa4e8eaac6@neuling.org>

open-power/HTX,open-power/HTX,stewart-ibm/HTX,open-power/HTX,stewart-ibm/HTX,stewart-ibm/HTX,stewart-ibm/HTX,stewart-ibm/HTX,open-power/HTX,open-power/HTX