libsdl2: bump revision.
libsdl2: bump revision.

haikuporter on the buildbot seems to use different revisions for base and devel packages.

nielx/haikuports,haikuports/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports,moochris/haikuports,haikuports/haikuports,moochris/haikuports,haikuports/haikuports,Begasus/haikuports,moochris/haikuports,nielx/haikuports,haikuports/haikuports,Begasus/haikuports,Begasus/haikuports,Begasus/haikuports