system/easy-kernel-power8: make sure no conflicts with easy-kernel

system/easy-kernel-power8/APKBUILD

@@ -55,6 +55,9 @@ package() {
 			"$pkgdir"/boot/vmlinux-$pkgver-mc$pkgrel-easy-p8
 	fi
 
+	# This allows coexistence of both kernel flavours on media.
+	mv "$pkgdir"/boot/System.map "$pkgdir"/boot/System.map-p8
+
 	install -D "$builddir"/include/config/kernel.release \
 		"$pkgdir"/usr/share/kernel/easy-$pkgver-mc$pkgrel-p8/kernel.release
 }