Use only 11 bits for the depth.

When using up to 14 bits for the depth, the resulting values are too
large in some cases. Most likely the upper bits are used to store
something else. Even with only 11 bits, the resulting depth range
(0-204.7m) should still be more than sufficient.

src/cressi_leonardo_parser.c

@@ -162,7 +162,7 @@ cressi_leonardo_parser_samples_foreach (dc_parser_t *abstract, dc_sample_callbac
 		dc_sample_value_t sample = {0};
 
 		unsigned int value = array_uint16_le (data + offset);
-		unsigned int depth = value & 0x3FFF;
+		unsigned int depth = value & 0x07FF;
 
 		// Time (seconds).
 		time += interval;