python: bump PKG_RELEASE

Bump PKG_RELEASE of python 2.7.11 as there have been several fixes
since the initial release.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

lang/python/Makefile

@@ -12,7 +12,7 @@ include ./files/python-package.mk
 
 PKG_NAME:=python
 PKG_VERSION:=$(PYTHON_VERSION).$(PYTHON_VERSION_MICRO)
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=Python-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://www.python.org/ftp/python/$(PKG_VERSION)