ODROID-COMMON: cmd/bmp: fix in the function 'gunzip_bmp'

This patch is to resolve two issues:

1) Compile error
	cmd/bmp.c: In function ‘gunzip_bmp’:
	cmd/bmp.c:61:31: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
	  bmp = (struct bmp_image *)((((unsigned int)dst + 1) & ~3) + 2);
				       ^
	cmd/bmp.c:61:8: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
	  bmp = (struct bmp_image *)((((unsigned int)dst + 1) & ~3) + 2);
		^

2) Return lenght of decompressed buffer to given arguemnt 'lenp' when
   decompression is success.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: I485ab72186f7130997fb6d0793c3b805efaa8b17

cmd/bmp.c

@@ -58,7 +58,7 @@ struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
 	bmp = dst;
 
 	/* align to 32-bit-aligned-address + 2 */
-	bmp = (struct bmp_image *)((((unsigned int)dst + 1) & ~3) + 2);
+	bmp = (struct bmp_image *)((((unsigned long)dst + 1) & ~3) + 2);
 
 	if (gunzip(bmp, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, map_sysmem(addr, 0),
 		   &len) != 0) {
@@ -81,6 +81,7 @@ struct bmp_image *gunzip_bmp(unsigned long addr, unsigned long *lenp,
 	debug("Gzipped BMP image detected!\n");
 
 	*alloc_addr = dst;
+	*lenp = len;
 	return bmp;
 }
 #else