gunicorn: replace PN with BPN, to solve fetch failure while building for multilib

The multilib gunicorn (for example lib32-gunicorn) fetch fails with
below error:
-- snip --
--2018-03-07 16:52:09-- https://pypi.python.org/packages/source/g/gunicorn/lib32-gunicorn-19.1.1.tar.gz
Resolving pypi.python.org... 151.101.0.223, 151.101.64.223, 151.101.128.223, ...
Connecting to pypi.python.org|151.101.0.223|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-03-07 16:52:09 ERROR 404: Not Found.
-- snip --

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/recipes-devtools/python/gunicorn_19.1.1.bb b/recipes-devtools/python/gunicorn_19.1.1.bb
index bbe03ea3..5c8ea484 100644
--- a/recipes-devtools/python/gunicorn_19.1.1.bb
+++ b/recipes-devtools/python/gunicorn_19.1.1.bb
@@ -8,7 +8,7 @@ DESCRIPTION = "\
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=19a2e253a273e390cd1b91d19b6ee236"
 
-SRC_URI = "https://pypi.python.org/packages/source/g/gunicorn/${PN}-${PV}.tar.gz"
+SRC_URI = "https://pypi.python.org/packages/source/g/gunicorn/${BPN}-${PV}.tar.gz"
 SRC_URI[md5sum] = "eaa72bff5341c05169b76ce3dcbb8140"
 SRC_URI[sha256sum] = "82715511fb6246fad4ba66d812eb93416ae8371b464fa88bf3867c9c177daa14"