Remove linkerconfig(bootstrap) from qemu_trusty_arm64 am: 558a1281d7 am: d6f0877774

Original change: https://android-review.googlesource.com/c/device/generic/trusty/+/2375254

Change-Id: I3a7edb4ab17c3f816c98a0e3ff826a4f6beac61d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>