Set PIE address range to avoid or minimize mmap pressure due to limited

Set PIE address range to avoid or minimize mmap pressure due to limited
address space. The space between PAGE_SIZE and the non-pie fixed link
address creates no mmap pressure so use that space for PIE. However on
hppa the non-pie fixed link address is PAGE_SIZE so just use a small range
for PIE to minimize mmap pressure.

okay miod@