msm: Update the kernel log messages

After reclaiming vmalloc and adjusting lowmem, the two
regions are no longer contiguous. Update the messages
printed during bootup to list all regions corresponding
to low memory and vmalloc respectively.

By the way, fix some minor sparse issues.

Change-Id: Ib3e25b530b3dfbd1f9796cdc580fb79da484e850
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>
Signed-off-by: Zhenhua Huang <zhenhuah@codeaurora.org>