poppler-data: Fix to work with changed makeflags

Without this, the data is installed into /usr/local and fails QA checks.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-support/poppler/poppler-data_0.4.7.bb

@@ -28,7 +28,7 @@ do_compile() {
 }
 
 do_install() {
-    oe_runmake install DESTDIR=${D}
+    oe_runmake install DESTDIR=${D} prefix=${prefix} datadir=${datadir}
     install -d ${D}${datadir}/poppler/cMap
     install -m644 ${WORKDIR}/Identity-* ${D}${datadir}/poppler/cMap/
 }