spi: tegra20-slink: use true and false for boolean values

Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-tegra20-slink.c

@@ -276,10 +276,10 @@ static unsigned tegra_slink_calculate_curr_xfer_param(
 	tspi->bytes_per_word = DIV_ROUND_UP(bits_per_word, 8);
 
 	if (bits_per_word == 8 || bits_per_word == 16) {
-		tspi->is_packed = 1;
+		tspi->is_packed = true;
 		tspi->words_per_32bit = 32/bits_per_word;
 	} else {
-		tspi->is_packed = 0;
+		tspi->is_packed = false;
 		tspi->words_per_32bit = 1;
 	}
 	tspi->packed_size = tegra_slink_get_packed_size(tspi, t);