Drop upstream patch.
Add upstream patch for fixing build with musl libc.
Add upstream patch fixing build with glibc older that 2.19, and another
upstream patch fixing musl build cause by the previous patch.
Add yet another upstream patch fixing build with kernel headers before
4.2
Switch download site to https for better security.
Add license file hash.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
