plnx-deploy.bbclass: Deploy uboot images with and without dtb
plnx-deploy.bbclass: Deploy uboot images with and without dtb

This patch will deploy uboot images with and without dtb as below.
	u-boot-nodtb.bin -> u-boot.bin
	u-boot-nodtb.elf -> u-boot.elf
	u-boot.elf       -> u-boot-dtb.elf
	u-boot.bin       -> u-boot-dtb.bin

Signed-off-by: Raju Kumar Pothuraju <faf499088bbd7c813560772aeae4b5ae1c5f96a7@xilinx.com>
Signed-off-by: Sai Hari Chandana Kalluri <dcd6f85a7bffd89d026445db0f5113d6d436d06a@xilinx.com>

Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux,Xilinx/meta-petalinux