Updating Makefile to create deps directory before cloning cpputest
Updating Makefile to create deps directory before cloning cpputest

This will not let Makefile rule to fail;
while trying to clone CppUTest for first time

This rule could be avoided by cloning CppUTest inside
deps/cpputest directly, but was avoided for simplicity.

mithun-b-sw/setup_CppUTest,mithun-b-sw/setup_CppUTest,mithun-b-sw/sequence,mithun-b-sw/sequence