Allows skipping memory manipulation utilities from compilation
Allows skipping memory manipulation utilities from compilation

To reduce the final binary size memory manipulation utilities
can be ignored during compilation.

By default these utilities will be compilation and they can be
skipped by adding the following in project level makefile -

DEFINES += -DSHELL_NO_UTILS

Signed-off-by: Piyush Itankar <4a4ff89c9da587217bb1deb9fbe4ebeb84f02484@google.com>
Change-Id: I8dacbde181cb7a66cbb9861c726ebaf25a251791

google/esh,google/esh