patch: add PACKAGECONFIG for attr

* it's autodetected from sysroot
* add PACKAGECONFIG to make it deterministic

(From OE-Core master rev: 2eb394b6111a7df730e38604e8efe8bce5c1653a)

(From OE-Core rev: 460acc1990b651e017795cccfe705cfdf4426fad)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/patch/patch.inc

@@ -9,5 +9,8 @@ S = "${WORKDIR}/patch-${PV}"
 
 inherit autotools update-alternatives
 
+PACKAGECONFIG ??= ""
+PACKAGECONFIG[attr] = "--enable-xattr,--disable-xattr,attr"
+
 ALTERNATIVE_${PN} = "patch"
 ALTERNATIVE_PRIORITY = "100"