mtd: m25p80: Disable 4KiB erase for s25sl032p, s25sl064p

Quoting from the datasheet for S25FL064P, rev. 05, Nov 18 2011, § 9.17:

"A 64 kB[sic] sector erase (D8h) command issued on 4 kB or 8 kB erase
sectors will erase all sectors in the specified 64 kB region. However,
please note that a 4 kB sector erase (20h) or 8 kB sector erase (40h)
command will not work on a 64 kB sector."

Referring further to Table 8.1 and Table 8.2, it is clearly seen
that most of the sectors are 64KiB; therefore disable this 4KiB
erase support since it's valid only on first/last sectors.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/devices/m25p80.c

@@ -670,8 +670,8 @@ static const struct spi_device_id m25p_ids[] = {
 	/* Spansion -- single (large) sector size only, at least
 	 * for the chips listed here (without boot sectors).
 	 */
-	{ "s25sl032p",  INFO(0x010215, 0x4d00,  64 * 1024,  64, SECT_4K) },
-	{ "s25sl064p",  INFO(0x010216, 0x4d00,  64 * 1024, 128, SECT_4K) },
+	{ "s25sl032p",  INFO(0x010215, 0x4d00,  64 * 1024,  64, 0) },
+	{ "s25sl064p",  INFO(0x010216, 0x4d00,  64 * 1024, 128, 0) },
 	{ "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, 0) },
 	{ "s25fl256s1", INFO(0x010219, 0x4d01,  64 * 1024, 512, 0) },
 	{ "s25fl512s",  INFO(0x010220, 0x4d00, 256 * 1024, 256, 0) },