Fix error in Exectutables thanks to eug89

Change-Id: I998aa652ad635ccc01ec08025fdfd889f46a8e3f
make: *** No rule to make target `/home/juston/cm/out/host/linux-x86/obj/STATIC_LIBRARIES/libbfd_intermediates/export_includes', needed by `/home/juston/cm/out/host/linux-x86/obj/EXECUTABLES/opannotate_intermediates/import_includes'.  Stop.
pp: Update ldflags for AOSP gcc 4.7

Was returning undefined references for dlopen, dlsym, and dlerror

Patch 2: Only change host ldflags.

Change-Id: I3c3840560cb1550f1b6ac6f26fe008a79184a44f
pp: Update ldflags for AOSP gcc 4.7

Was returning undefined references for dlopen, dlsym, and dlerror

Change-Id: I3c3840560cb1550f1b6ac6f26fe008a79184a44f