Switch to using %autosetup for patches

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

yajl.spec

@@ -19,10 +19,10 @@ URL: http://lloyd.github.com/yajl/
 #   https://github.com/lloyd/yajl/releases/tag/2.1.0
 #
 Source0: %{name}-%{version}.tar.gz
-Patch1: %{name}-%{version}-pkgconfig-location.patch
-Patch2: %{name}-%{version}-pkgconfig-includedir.patch
-Patch3: %{name}-%{version}-test-location.patch
-Patch4: %{name}-%{version}-dynlink-binaries.patch
+Patch: %{name}-%{version}-pkgconfig-location.patch
+Patch: %{name}-%{version}-pkgconfig-includedir.patch
+Patch: %{name}-%{version}-test-location.patch
+Patch: %{name}-%{version}-dynlink-binaries.patch
 
 BuildRequires:  gcc
 BuildRequires: cmake
@@ -45,11 +45,7 @@ This sub-package provides the libraries and includes
 necessary for developing against the YAJL library
 
 %prep
-%setup -q
-%patch1 -p1
-%patch2 -p1
-%patch3 -p1
-%patch4 -p1
+%autosetup -p1
 
 %build
 # NB, we are not using upstream's 'configure'/'make'