python: Fix re-execution problem due to patching configure and configure.in

There was a patch patching both configure and configure.in. Since the recipes
all autoreconf, this is pointless and means subsequent patch tasks fail.

The fix is to only patch configure.in.

[YOCTO #2194]

(From OE-Core rev: 1d8c40d5f2119b4c4ae8a9b2645ae572ea9a54ff)

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

meta/recipes-devtools/python/python-native_2.7.2.bb

@@ -1,6 +1,6 @@
 require python.inc
 DEPENDS = "openssl-native bzip2-full-native zlib-native readline-native sqlite3-native"
-PR = "${INC_PR}.3"
+PR = "${INC_PR}.4"
 
 SRC_URI += "file://04-default-is-optimized.patch \
            file://05-enable-ctypes-cross-build.patch \