Update Arch kernel to 5.7.9

pkg/arch/kernel/PKGBUILD

@@ -2,8 +2,8 @@
 # Maintainer: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
 
 pkgbase=linux-surface
-pkgver=5.7.8.arch1
-pkgrel=2
+pkgver=5.7.9.arch1
+pkgrel=1
 pkgdesc='Linux'
 _fullver=${pkgver%.*}-${pkgver##*.}
 _srctag=v${_fullver}
@@ -35,7 +35,7 @@ validpgpkeys=(
   '647F28654894E3BD457199BE38DBBDC86092693E'  # Greg Kroah-Hartman
   'A2FF3A36AAA56654109064AB19802F8B0D70FC30'  # Jan Alexander Steffens (heftig)
 )
-sha256sums=('15bd21eb962dffb11f059705f1831b81b2ace0a6bac93e25600c17135fdd1cb2'
+sha256sums=('4b489311ed67ca87281ad3c7440bc65e059f502bf7728eaa27999fe8d7e7bdac'
             '623601ed9d7879dd9dba1cd50fc8051f9db508b49b4fc0c47c5a9eb9165fc04e'
             '4662d1c8c5557e7531cfd4175809e832aa2d96771454f9631f5c09c2c40eb881'
             '8dbaa21d2c03621b0c5d96c4fbcc7a839bea5a34a5f2279a409c3b404756e753'