lcd/lcddrv: Fix warnings

- Log received param's value.
- uint32_t should be %lu in printf.

Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>
diff --git a/drivers/lcd/lcddrv_spiif.c b/drivers/lcd/lcddrv_spiif.c
index 244e8af..0ad4fc0 100644
--- a/drivers/lcd/lcddrv_spiif.c
+++ b/drivers/lcd/lcddrv_spiif.c
@@ -175,8 +175,8 @@
 {
   FAR struct lcddrv_spiif_lcd_s *priv = (FAR struct lcddrv_spiif_lcd_s *)lcd;
 
-  lcdinfo("param=%04x\n", param);
   SPI_RECVBLOCK(priv->spi, param, 1);
+  lcdinfo("param=%04x\n", *param);
   return OK;
 }
 
@@ -254,7 +254,7 @@
 {
   FAR struct lcddrv_spiif_lcd_s *priv = (FAR struct lcddrv_spiif_lcd_s *)lcd;
 
-  lcdinfo("wd=%p, nwords=%d\n", wd, nwords);
+  lcdinfo("wd=%p, nwords=%lu\n", wd, nwords);
   SPI_SETBITS(priv->spi, 16);
   SPI_RECVBLOCK(priv->spi, wd, nwords);
   SPI_SETBITS(priv->spi, 8);