[Driver] correct typo in FreeBSD 14 test

The test specified amd64-unknown-freebsd40.0 rather than 14.0.  Since
40 is greater than 14 the test (for behaviour new in FreeBSD 14) worked
despite the typo.

Fixes:		699d47472c3f
Reviewed by:	dim (in D77776)
GitOrigin-RevId: a40dcd060e9d374d68df53b881d62e4de2bc310a
1 file changed