scripts: supress cppcheck warnings in tommyds header files
scripts: supress cppcheck warnings in tommyds header files

cppcheck was complaining about issues in tommyds header files, despite
the directory is already ignored explicit.
Also add supress lines for the tommyds header files to supress:
	CastIntegerToAddressAtReturn:rtrlib/spki/hashtable/tommyds-1.8/tommyarrayof.h(114):(portability)
	Returning an integer in a function with pointer return type is
	not portable.
	CastIntegerToAddressAtReturn:rtrlib/spki/hashtable/tommyds-1.8/tommyarrayblkof.h(95):(portability)
	Returning an integer in a function with pointer return type is
	not portable.

rtrlib/rtrlib,rtrlib/rtrlib,rtrlib/rtrlib