Makes subsequent builds faster, retains the .o files
Makes subsequent builds faster, retains the .o files

make would recompile all the files, with this patch Make retains
all the *.o files. This would help in rebuilds being faster.

executing `make clean` removes all of the *.o files.

Signed-off-by: Piyush Itankar <4a4ff89c9da587217bb1deb9fbe4ebeb84f02484@google.com>
Change-Id: I02e0530287c2f884cf6296343adcffbd13f0abeb

google/esh,google/esh