!527 20.03-lts-sp4 dpdk回退到 19.11版本，本次提交适配dpdk-19.11

From: @lyn1001 
Reviewed-by: @jiangheng12 
Signed-off-by: @jiangheng12

gazelle.spec

@@ -2,7 +2,7 @@
 
 Name:          gazelle
 Version:       1.0.2
-Release:       6
+Release:       7
 Summary:       gazelle is a high performance user-mode stack
 License:       MulanPSL-2.0
 URL:           https://gitee.com/openeuler/gazelle
@@ -10,7 +10,7 @@ Source0:       %{name}-%{version}.tar.gz
 
 BuildRequires: cmake gcc-c++
 BuildRequires: lwip >= 2.1.3-78
-BuildRequires: dpdk-devel >= 21.11-56
+BuildRequires: dpdk-devel >= 19.11-23
 BuildRequires: numactl-devel libpcap-devel libconfig-devel libboundscheck uthash-devel
 
 Requires:      dpdk >= 19.11-23
@@ -41,7 +41,7 @@ ExclusiveArch: x86_64 aarch64
 %autosetup -n %{name}-%{version} -p1
 
 %build
-#export DPDK_VERSION_1911=1
+export DPDK_VERSION_1911=1
 cd %{_builddir}/%{name}-%{version}
 # Add compile option, ignore map address check. Scenarios: asan test
 %if 0%{?gazelle_map_addr_nocheck}
@@ -72,6 +72,9 @@ install -Dpm 0640 %{_builddir}/%{name}-%{version}/src/ltran/ltran.conf       %{b
 %config(noreplace) %{conf_path}/ltran.conf
 
 %changelog
+* Fri Nov 3 2023 liyanan <liyanan61@h-parners.com> - 1.0.2-7
+- Adapt dpdk fallback
+
 * Sat Oct 14 2023 yinbin6 <yinbin8@huawei.com> - 1.0.2-6
 - update lwip version buildrequire