ANDROID: libtracefs: Add MODULE_LICENSE_GPL am: fd084593f6

Original change: https://android-review.googlesource.com/c/platform/external/libtracefs/+/2084926

Change-Id: Ia41108724fbb24e808b20d895cd326c9e843c50a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>