zip: rename package to infozip to avoid name collision with tools

Rename "zip" to "infozip" to avoid name collision, as the same
zip package has been introduces to the build tools as zip.
Buildbot does not like that.

Reference to #10985 and #11089 as well as
https://github.com/openwrt/openwrt/commit/ad8c2d6099a7da5192ee6e2c52a8303642271877

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

utils/infozip/patches/020-format.patch

@@ -0,0 +1,22 @@
+--- a/zip.c
++++ b/zip.c
+@@ -1028,8 +1028,7 @@ local void help_extended()
+ 
+   for (i = 0; i < sizeof(text)/sizeof(char *); i++)
+   {
+-    printf(text[i]);
+-    putchar('\n');
++    puts(text[i]);
+   }
+ #ifdef DOS
+   check_for_windows("Zip");
+@@ -1225,8 +1224,7 @@ local void version_info()
+             CR_MAJORVER, CR_MINORVER, CR_BETA_VER, CR_VERSION_DATE);
+   for (i = 0; i < sizeof(cryptnote)/sizeof(char *); i++)
+   {
+-    printf(cryptnote[i]);
+-    putchar('\n');
++    puts(cryptnote[i]);
+   }
+   ++i;  /* crypt support means there IS at least one compilation option */
+ #endif /* CRYPT */