pgkdep: Add llvm package

Its tools are needed for the LTO builds under clang.

Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I221069b2e74d71cfa811b226fb6a4c20598bef12
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10240
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

test/common/config/pkgdep/apt-get

@@ -72,6 +72,7 @@ packages=(
 	ibverbs-utils
 	rdmacm-utils
 	ruby-dev
+	llvm
 )
 
 install_vagrant_dependencies() {

test/common/config/pkgdep/dnf

@@ -60,6 +60,7 @@ packages=(
 	xfsprogs
 	rpmdevtools
 	ruby-devel
+	llvm
 )
 
 pre_install() { :; }

test/common/config/pkgdep/yum

@@ -58,6 +58,7 @@ packages=(
 	xfsprogs
 	rpmdevtools
 	ruby-devel
+	llvm
 )
 
 pre_install() { :; }