common: eeprom_field: Fix updating binary field

The __eeprom_field_update_bin() function is expected to parse a hex
string into bytes (potentially in reverse order), but the
simple_strtoul() function is given 0 as base. This does not work since
the string does not contain '0x' prefix. Add explicit base 16.

Signed-off-by: Marek Behún <kabel@kernel.org>

common/eeprom/eeprom_field.c

@@ -55,7 +55,7 @@ static int __eeprom_field_update_bin(struct eeprom_field *field,
 			tmp[k] = value[reverse ? i - 1 + k : i + k];
 		}
 
-		byte = simple_strtoul(tmp, &endptr, 0);
+		byte = simple_strtoul(tmp, &endptr, 16);
 		if (*endptr != '\0' || byte < 0)
 			return -1;