bluez4: Replace deprecated configure switch

"--enable-configfiles" is deprecated upstream. Here is the original reason &
patch:

http://www.spinics.net/lists/linux-bluetooth/msg14266.html

Replace "--enable-configfiles" with "--enable-datafiles" in the bluez4
recipe.

(From OE-Core rev: 95e73d81554969ca4f0af43773343e1fbceda999)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/bluez/bluez4_4.96.bb

@@ -12,7 +12,7 @@ RDEPENDS_${PN}-dev = "bluez-hcidump"
 
 ASNEEDED = ""
 
-PR = "r0"
+PR = "r1"
 
 SRC_URI = "\
   ${KERNELORG_MIRROR}/linux/bluetooth/bluez-${PV}.tar.gz \
@@ -39,7 +39,7 @@ EXTRA_OECONF = "\
   --enable-dund \
   --disable-cups \
   --enable-test \
-  --enable-configfiles \
+  --enable-datafiles \
 "
 
 do_install_append() {