linux59-tkg: Update fsync patchset to zen-kernel's

https://github.com/zen-kernel/zen-kernel/tree/5.9/futex-multiple-wait-v3

This is cleaner than what we were doing.

linux59-tkg/PKGBUILD

@@ -45,7 +45,7 @@ else
 fi
 pkgname=("${pkgbase}" "${pkgbase}-headers")
 pkgver="${_basekernel}"."${_sub}"
-pkgrel=5
+pkgrel=6
 pkgdesc='Linux-tkg'
 arch=('x86_64') # no i686 in here
 url="http://www.kernel.org/"
@@ -98,7 +98,7 @@ sha256sums=('3239a4ee1250bf2048be988cc8cb46c487b2c8a0de5b1b032d38394d5c6b1a06'
             '45a9ab99215ab3313be6e66e073d29154aac55bc58975a4df2dad116c918d27c'
             'fca63d15ca4502aebd73e76d7499b243d2c03db71ff5ab0bf5cf268b2e576320'
             '19661ec0d39f9663452b34433214c755179894528bf73a42f6ba52ccf572832a'
-            'edb93a2bef291c16dbcbf8d11f7a12febb77b2d193dd4be0dac988de91e0d97c'
+            'b302ba6c5bbe8ed19b20207505d513208fae1e678cf4d8e7ac0b154e5fe3f456'
             '9fad4a40449e09522899955762c8928ae17f4cdaa16e01239fd12592e9d58177'
             'a557b342111849a5f920bbe1c129f3ff1fc1eff62c6bd6685e0972fc88e39911'
             '88c7e308e474c845e0cc09e09bd223fc39876eca757abf6d6c3b8321f49ce1f1'