libs/libgd: Update to 2.2.4

Update libgd to 2.2.4
Fixes multiple CVEs
Refresh patches
Update list according to:
https://svnweb.freebsd.org/ports/head/graphics/gd/pkg-plist?revision=432648&view=markup
...except helpers as it's not generated.

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

libs/libgd/patches/200-uclibc-ceill.patch

@@ -1,6 +1,6 @@
 --- a/src/gd_bmp.c
 +++ b/src/gd_bmp.c
-@@ -21,6 +21,7 @@
+@@ -28,6 +28,7 @@
  #include <math.h>
  #include <string.h>
  #include <stdlib.h>
@@ -8,7 +8,7 @@
  #include "gd.h"
  #include "gdhelpers.h"
  #include "bmp.h"
-@@ -42,6 +43,13 @@ static int bmp_read_rle(gdImagePtr im, g
+@@ -49,6 +50,13 @@ static int bmp_read_rle(gdImagePtr im, g
  
  #define BMP_DEBUG(s)