i2c: tegra: Maintain CPU endianness

Support CPU BE mode by adding endianness conversion for memcpy interactions.

Signed-off-by: Dmitry Osipenko <[e-mail]>
Acked-by: Alexandre Courbot <[e-mail]>
Signed-off-by: Wolfram Sang <[e-mail]>

drivers/i2c/busses/i2c-tegra.c

···
 	if (rx_fifo_avail > 0 && buf_remaining > 0) {
 		BUG_ON(buf_remaining > 3);
 		val = i2c_readl(i2c_dev, I2C_RX_FIFO);
+		val = cpu_to_le32(val);
 		memcpy(buf, &val, buf_remaining);
 		buf_remaining = 0;
 		rx_fifo_avail--;
···
 	if (tx_fifo_avail > 0 && buf_remaining > 0) {
 		BUG_ON(buf_remaining > 3);
 		memcpy(&val, buf, buf_remaining);
+		val = le32_to_cpu(val);
 
 		/* Again update before writing to FIFO to make sure isr sees. */
 		i2c_dev->msg_buf_remaining = 0;