Update specs file to provide -Ttext-segment=0x100000
Update specs file to provide -Ttext-segment=0x100000

Remove the need to add -Wl,-Ttext-segment when building a dynamically
linked executable by adding the appropriate check to the specs file.

TBR=mcgrathr@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/320403004

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@13306 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client