MLECO-2946: Draw boxes directly on the LCD

* No longer copy the source image
* Boxes are drawn directly to LCD rather than on source image
* Change c style casts to static casts

Signed-off-by: Richard Burton <richard.burton@arm.com>
Change-Id: Ib8e926cb1a87bc2c40424eb5aace40170c526f1d
diff --git a/source/hal/profiles/bare-metal/data_presentation/lcd/lcd_img.c b/source/hal/profiles/bare-metal/data_presentation/lcd/lcd_img.c
index f03566f..7064396 100644
--- a/source/hal/profiles/bare-metal/data_presentation/lcd/lcd_img.c
+++ b/source/hal/profiles/bare-metal/data_presentation/lcd/lcd_img.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Arm Limited. All rights reserved.
+ * Copyright (c) 2021-2022 Arm Limited. All rights reserved.
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -60,7 +60,7 @@
     return show_title();
 }
 
-int lcd_display_image(uint8_t* data, const uint32_t width,
+int lcd_display_image(const uint8_t* data, const uint32_t width,
     const uint32_t height, const uint32_t channels,
     const uint32_t pos_x, const uint32_t pos_y,
     const uint32_t downsample_factor)