- Remove plymouth-runstatedir-revert.patch: Tumbleweed following
upstream, which already support "--runstatedir", don't need this
modification anymore(jsc#PED-5841).
- Add plymouth-runstatedir-revert.patch: For plymouth update
successfully build in SLE-15-SP6:GA. The current edition of
autoconf on SLE-15-SP6:GA don't support "--runstatedir" yet, so
reverse plymouth compile option to the old "--withruntimedir"
(jsc#PED-5841).