Put cinfo array into initdata section. Added more precision in bootmem

cinfo array is now freed along with other init memory.
bootmem allocator memory is reduced to be completely used up.
free boot memory now prints the used free memory as well.

scripts/kernel/generate_kernel_cinfo.py

@@ -37,7 +37,7 @@ cinfo_file_start = \
  * Add irqs, exceptions
  */
 
-struct container_info cinfo[] = {
+__initdata struct container_info cinfo[] = {
 '''
 cinfo_file_end = \
 '''