Drop upstream patch.
Add a patch for fixing static build.
Add license information about the newly introduced libbtrfsutil.
Disable the libbtrfsutil python binding. It does not cross compile
nicely.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
