malta: Fix README file examples

The example command-lines used references and paths from an older directory
structure.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

target/linux/malta/README

@@ -5,9 +5,9 @@ troubleshoot MIPS applications without access to real hardware.
 To use the images built by OpenWrt with qemu, use the following commands:
 
 For the little-endian image:
-qemu-system-mipsel -kernel bin/malta/openwrt-malta-le-vmlinux-initramfs.elf -nographic -m 256
+qemu-system-mipsel -kernel bin/targets/malta/le/lede-malta-le-vmlinux-initramfs.elf -nographic -m 256
 
 For the big-endian image:
-qemu-system-mips -kernel bin/malta/openwrt-malta-be-vmlinux-initramfs.elf -nographic -m 256
+qemu-system-mips -kernel bin/targets/malta/be/lede-malta-be-vmlinux-initramfs.elf -nographic -m 256
 
 and enjoy the system bootin.