binutils: fix xtensa gas trampolines regression

xtensa trampolines relaxation optimization caused the following build
errors:
  Error: operand 1 of 'j' has out of range value '131643'
  Error: operand 1 of 'j' has out of range value '4294836162'
  Error: operand 1 of 'j' has out of range value '4294836072'

Extra condition 'abs (addr - trampaddr) < J_RANGE / 2' for trampoline
selection results in regressions: when relaxable jump is little longer
than J_RANGE so that single trampoline makes two new jumps, one longer
than J_RANGE / 2 and one shorter, correct trampoline cannot be found.

Drop that condition.

Upstream status: patch submitted.
Fix squashed into the optimization patch.
Fixes:
  http://autobuild.buildroot.net/results/5ba7d18262ce6a2dfd69db07d064a971267f1128/



Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>