Create minimal remap table for symbol binary search.

ELF symbols are not sorted by address. Create remap table
which reshuffles the indices into sorted-by-address order.

This saves over 6x of memory (the remap table needs just
uint32_t per entry, as opposed the FuncInfo cache entry).

ART symbols are sorted.  Make use of that fact.

Bug: 110133331
Test: libunwindstack_test
Test: art/test.py -b --host -r -t 137-cfi
Change-Id: I1812d2dd3ad6a69ae93ed50ca387749c649289b9