When the array gets down to size zero (which it does in later patches),
gcc complains that the index is out of bounds. Avoid this by using
ARRAY_SIZE on extensionModules instead.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Stéphane Marchesin <stephane.marchesin@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>