[flashrom] [PATCH] convert write_49fl00x to write_jedec_1

[Sean Nelson]

Since we have a unlock interface for chips, I think we can convert the 
remaining references to *_49fl00x. Now the only remaining and used 
function in pm49fl00x.c is unlock_49fl00x. Added missing unlock to AMIC 
A49LF040A.

Signed-off-by: Sean Nelson