Update Makefile so that build products are placed in build directory.
Update Makefile so that build products are placed in build directory.

alco/psdump,eric-seekas/psdump,eric-seekas/psdump,alco/psdump,alco/psdump,eric-seekas/psdump,mitni455/psdump,mitni455/psdump,mitni455/psdump,eric-seekas/psdump,mitni455/psdump,alco/psdump