modify the file to use mklmfs to genernate ramdisk.img

Signed-off-by: Le Min <lemin9538@gmail.com>
Revert "add code for data abort and prefetch abort handler"

This reverts commit c6ee15a67c95671a82f240463a06d7e6b0300b25.
fix a bug of spin lock need pass the address

Signed-off-by: Le Min <lemin9538@gmail.com>
fix a memory map issue when ramdisk is bigger than 1M

Signed-off-by: Le Min <lemin9538@gmail.com>
modify the print message of memory information

Signed-off-by: Le Min <lemin9538@gmail.com>
add one spin lock to the disk module and do some modification

Signed-off-by: Le Min <lemin9538@gmail.com>
add debug info for mmu mapping

Signed-off-by: Le Min <lemin9538@gmail.com>
add debug information for the address of ramdisk
begin to debug lmfs

Signed-off-by: Le Min <lemin9538@gmail.com>