de-fuzz python-glance-store patch

With rpm version < 4.13, patch cmd will create .orig file for fuzzy
patch in default. And this .orig file may lead to rpmbuild failure
"error: Installed (but unpackaged) file(s) found:"

Please visit below link to get more detail info:
https://bugs.launchpad.net/starlingx/+bug/1794611

Story: 2003917
Task: 26970

Change-Id: I85f4fb8a5c5247151720268234db1059c5398696
Signed-off-by: slin14 <shuicheng.lin@intel.com>

openstack/python-glance-store/centos/meta_patches/0003-meta-patch-Glance-Driver.patch

@@ -1,32 +1,32 @@
-From ec249641ede0728731c263a51fdf44d5f97d596a Mon Sep 17 00:00:00 2001
+From bcdcfce2587d467d756d7493f40a41167c2b68ed Mon Sep 17 00:00:00 2001
 From: Stefan Dinescu <stefan.dinescu@windriver.com>
 Date: Thu, 16 Nov 2017 17:44:10 +0000
-Subject: [PATCH 1/1] Meta Glance Driver
+Subject: Meta Glance Driver
 
 ---
  SPECS/python-glance-store.spec | 2 ++
  1 file changed, 2 insertions(+)
 
 diff --git a/SPECS/python-glance-store.spec b/SPECS/python-glance-store.spec
-index f001803..be60094 100644
+index b60bd97..0c0d728 100644
 --- a/SPECS/python-glance-store.spec
 +++ b/SPECS/python-glance-store.spec
-@@ -12,6 +12,7 @@ Source0:        https://tarballs.openstack.org/%{upstream_name}/%{upstream_name}
+@@ -15,6 +15,7 @@ URL:            https://github.com/openstack/%{upstream_name}
- 
+ Source0:        https://tarballs.openstack.org/%{upstream_name}/%{upstream_name}-%{upstream_version}.tar.gz
  # WRS
  Patch0001: 0001-Check-ceph-cluster-free-space-before-creating-image.patch
 +Patch0002: 0002-Add-glance-driver.patch
  
  BuildArch:      noarch
- BuildRequires:  python2-devel
+ 
-@@ -44,6 +45,7 @@ OpenStack image service store library
+@@ -88,6 +89,7 @@ Requires:       python3-oslo-privsep >= 1.9.0
  
  # Apply WRS patches
  %patch0001 -p1
 +%patch0002 -p1
  
  %build
- %{__python2} setup.py build
+ %py2_build
 -- 
-1.8.3.1
+2.7.4