PD#TV-9668
Problem:
If sp address is in linear mapping range, check_sp_fault_again
function in vmap fault handler will still map a new page for it.
This will cause some data in R/W section polluted.
Solution:
Avoid map page if sp is in linear range.
Verify:
TL1 x301
Change-Id: I0e02a2048b586854c528cd3eeafb725751b9dc82
Signed-off-by: Tao Zeng <tao.zeng@amlogic.com>