buildroot: AArch64 host: update AArch32 toolchain

br-ext/configs/toolchain-aarch32 describes the downloaded AArch32
toolchain, but a AArch64 host still downloads an older toolchain leading
to configuration errors when building for a AArch32 target. Fix this by
updating to download a matching version of the AArch32 toolchain.

Fixes: 19b7b070c968 ("toolchain: update GCC to v11.3")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
diff --git a/toolchain.mk b/toolchain.mk
index 1d3cd54..4dc859a 100644
--- a/toolchain.mk
+++ b/toolchain.mk
@@ -118,8 +118,8 @@
 
 AARCH32_PATH 			?= $(TOOLCHAIN_ROOT)/aarch32
 AARCH32_CROSS_COMPILE 		?= $(AARCH32_PATH)/bin/arm-linux-gnueabihf-
-AARCH32_GCC_VERSION 		?= gcc-arm-10.2-2020.11-aarch64-arm-none-linux-gnueabihf
-SRC_AARCH32_GCC 		?= https://developer.arm.com/-/media/Files/downloads/gnu-a/10.2-2020.11/binrel/$(AARCH32_GCC_VERSION).tar.xz
+AARCH32_GCC_VERSION 		?= arm-gnu-toolchain-11.3.rel1-aarch64-arm-none-linux-gnueabihf
+SRC_AARCH32_GCC 		?= https://developer.arm.com/-/media/Files/downloads/gnu/11.3.rel1/binrel/$(AARCH32_GCC_VERSION).tar.xz
 
 # There isn't any native aarch64 toolchain released from Arm and buildroot
 # doesn't support distribution toolchain [1]. So we are left with no choice