drivers: spi_context: fix some LOG_DBG warnings

This casts the char * buffers to void * before giving them to the
LOG_DBG function to fix a warning at runtime.

Signed-off-by: Gaël PORTAY <gael.portay@gmail.com>

Author: gportay

drivers/spi/spi_context.h

@@ -312,7 +312,8 @@ void spi_context_buffers_setup(struct spi_context *ctx,
 		" tx buf/len %p/%zu, rx buf/len %p/%zu",
 		ctx->current_tx, ctx->tx_count,
 		ctx->current_rx, ctx->rx_count,
-		ctx->tx_buf, ctx->tx_len, ctx->rx_buf, ctx->rx_len);
+		(void *)ctx->tx_buf, ctx->tx_len,
+		(void *)ctx->rx_buf, ctx->rx_len);
 }
 
 static ALWAYS_INLINE
@@ -340,7 +341,7 @@ void spi_context_update_tx(struct spi_context *ctx, uint8_t dfs, uint32_t len)
 		ctx->tx_buf += dfs * len;
 	}
 
-	LOG_DBG("tx buf/len %p/%zu", ctx->tx_buf, ctx->tx_len);
+	LOG_DBG("tx buf/len %p/%zu", (void *)ctx->tx_buf, ctx->tx_len);
 }
 
 static ALWAYS_INLINE
@@ -387,7 +388,7 @@ void spi_context_update_rx(struct spi_context *ctx, uint8_t dfs, uint32_t len)
 		ctx->rx_buf += dfs * len;
 	}
 
-	LOG_DBG("rx buf/len %p/%zu", ctx->rx_buf, ctx->rx_len);
+	LOG_DBG("rx buf/len %p/%zu", (void *)ctx->rx_buf, ctx->rx_len);
 }
 
 static ALWAYS_INLINE