NSS 3.48 requires NSPR 4.24 already bumped. It already fixed
CVE-2019-11745 but in version 3.47.1 it's already fixed. Anyway from
3.47 to 3.48 it fixes:
CVE-2019-11745: EncryptUpdate should use maxout, not block size
Remove an upstreamed patch but introduce a new one to fix building with
signal.h include.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>