device/testing/linux-asus-grouper: bump kernel to 5.9 (MR 1528)

Signed-off-by: David Heidelberg <david@ixit.cz>

device/testing/linux-asus-grouper/APKBUILD

 # Maintainer: David Heidelberg <david@ixit.cz>
 _flavor=asus-grouper
-_commit="fadacdcb9e5b60f6547c37f519d1851cb2f90edb"
+_commit="e87ec80ef138eefb741b4b01079eda9fcdc9c8cf"
 _config="config-$_flavor.armv7"
 
 pkgname=linux-asus-grouper
-pkgver=5.6.0_rc2
-pkgrel=1
+pkgver=5.9.0_rc2
+pkgrel=0
 arch="armv7"
 pkgdesc="Nexus 7 grouper/tilapia (2012) kernel fork, close to mainline"
 url="https://postmarketos.org"
@@ -56,5 +56,5 @@ package() {
 		INSTALL_MOD_PATH="$pkgdir" \
 		INSTALL_DTBS_PATH="$pkgdir/usr/share/dtb"
 }
-sha512sums="22cdafad7888f3267fbd92cdb46d67390c89c9e2b433faaef591ca576bc88b4f51157495948a049f1be6b98a6eacc71ed7253033e98bc708a35e3c62f4f4cf90  linux-asus-grouper-5.6.0_rc2-fadacdcb9e5b60f6547c37f519d1851cb2f90edb.tar.gz
-293290400eb1d30fd381006290ee891f1cb369ee2ad090ba6fc1e90005ecb6c555d763f1c600867a7832d414e8f7c51e195981fc9eba290f87fad9411b80799a  config-asus-grouper.armv7"
+sha512sums="fdbcd1396576b6949f75302828147a1416ab46e0686f3d66e53173b3e765387df3776ba7313f35268aef77495d22d5c41abd0e396e71316bb65de8f0f088515f  linux-asus-grouper-5.9.0_rc2-e87ec80ef138eefb741b4b01079eda9fcdc9c8cf.tar.gz
+1c51cef41f1665ab029dcac868b4a6233a413d76ff2d78af853d602b351ce15fef8d40aae7a2b10b74cc5006a5c6ddae41b547396416fdba4059173d71ba9712  config-asus-grouper.armv7"