Build GCC which always enable --eh-frame-hdr

Previously GCC disable --eh-frame-hdr for static executable.
Android needs --eh-frame-hdr at least for X86 and MIPS which use
eh frames.

See
1. example: 23e3137ee2897464b051599b85a09f130d3ad05d
2. patch for 4.8 https://android-review.googlesource.com/#/c/63181
3. backport to 4.6/4.7: https://android-review.googlesource.com/#/c/63182

Change-Id: I07e0d6a6388068c573f873e2cf2f9a687d271b13
2 files changed