In addition, prevent FS tests from running on internal flash,
due to the fact that file system on internal flash is not part of
our offering (TDBStore should be used there instead).
mbed.h was added in test, via greentea and utest header files. 'mbed.h' is removed
from header files and required header file and namespace is added to CPP/C files
Revert deprecation of FlashIAPBlockDevice 2 argument constructor has this was a breaking change. This follows a similar change in the external flashiap-driver repo.
"/fs" is a tautology - not a good name for the default filing system, as
whereever we use it, we know we're specifying a filing system. Rename to
"/default".