QcomModulePkg: Update CmdLine to handle Squash FS

To handle squashFS boot on NAND, the command line has to set:
 * root parameter to the gluebi emulated MTD device.
 * rootfstype parameter to squashfs

Change-Id: Ief07c5c8d8e66e9c7714baff1d3c8f807c284d0c
5 files changed