Gplugd: Adding uboot and kernel binaries

Pre-built images for gplugD
U-boot : u-boot.bin :   MD5 b7d5e096e44a7d1497987122f102d71f
Kernel : zImage :       MD5 37a14937c5ee45883b9c74fad8ce5e7b

Signed-off-by: Yogi P <yogi@vadactro.org.in>