nand-data: rename duplicate Numonyx NAND01G devices as 'Rev C'

nand-data: rename duplicate Numonyx NAND01G devices as 'Rev C'

The table includes two entries for each of the following Numonyx devices:
NAND01GR3B2B, NAND01GW3B2B, NAND01GR4B2B, NAND01GW4B2B.  After further analysis,
it seems that the data for the second set of entries actaully coresponds to the
'Rev C' version of the devices, rather than 'Rev B' as suggested by the names.
This patch renames the second set of entries with the 'Rev C' names.

Signed-off-by: Angus Clark <angus.clark@st.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>