[PATCH 20.11] config: add arch define for Arm

[Ruifeng Wang <ruifeng.wang@arm.com>]

[ upstream commit 9cc217a28310d21fba56e5eceb740b4feb7e0949 ]

As per design document, RTE_ARCH is the name of the architecture.
However, the definition was missing on Arm with meson build.
It impacts applications that refers to this string.

Added for Arm builds.

Fixes: b1d48c41189a ("build: support ARM with meson")

Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
---
 config/arm/meson.build | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/config/arm/meson.build b/config/arm/meson.build
index fcbcf1ca56..bb72f40c65 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -137,12 +137,14 @@ dpdk_conf.set('RTE_FORCE_INTRINSICS', 1)
 if dpdk_conf.get('RTE_ARCH_32')
 	dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
 	dpdk_conf.set('RTE_ARCH_ARMv7', 1)
+	dpdk_conf.set('RTE_ARCH', 'armv7')
 	# the minimum architecture supported, armv7-a, needs the following,
 	# mk/machine/armv7a/rte.vars.mk sets it too
 	machine_args += '-mfpu=neon'
 else
 	dpdk_conf.set('RTE_CACHE_LINE_SIZE', 128)
 	dpdk_conf.set('RTE_ARCH_ARM64', 1)
+	dpdk_conf.set('RTE_ARCH', 'armv8')
 
 	machine = []
 	cmd_generic = ['generic', '', '', 'default', '']
-- 
2.25.1