omap5: bandgap: sensor data: use ES2.0 data

ES2.0 and ES1.0 have different macros for temperature range start/end.
with the wrong start/end range, computed temperature is wrong (delta of
around a few degree C).

Use the correct macro for ES2.0.

Change-Id: I114b1b917e5729f6e9fa9e75750553148a199f13
Reported-by: José Peña <pena@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>