main/xf86-video-ati: enable glamor

fixes #8201

main/xf86-video-ati/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=xf86-video-ati
 pkgver=7.10.0
-pkgrel=0
+pkgrel=1
 pkgdesc="ATI video driver"
 url="http://xorg.freedesktop.org/"
 arch="all"
@@ -23,7 +23,7 @@ build() {
 		--build=$CBUILD \
 		--host=$CHOST \
 		--prefix=/usr \
-		--disable-glamor
+		--enable-glamor
 	make
 }