support/testing: TestGlxinfo: bump the toolchain to x86 core2 Bootlin toolchain stable 2022.08-1

This new Bootlin toolchain stable 2022.08-1 is based on gcc 11.3.0,
linux headers 4.9.327, glibc 2.35 and binutils 2.38.

Nowadays Bootlin toolchains are packaged in Buildroot and we can
directly select them from BASIC_TOOLCHAIN_CONFIG and avoid
setting the toolchain parameters (BR2_TOOLCHAIN_EXTERNAL_CUSTOM...).

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/testing/tests/package/test_glxinfo.py

@@ -10,14 +10,8 @@ class TestGlxinfo(infra.basetest.BRTest):
         """
         BR2_x86_core2=y
         BR2_TOOLCHAIN_EXTERNAL=y
-        BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
-        BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-        BR2_TOOLCHAIN_EXTERNAL_URL="http://toolchains.bootlin.com/downloads/releases/toolchains/x86-core2/tarballs/x86-core2--glibc--bleeding-edge-2018.11-1.tar.bz2"
-        BR2_TOOLCHAIN_EXTERNAL_GCC_8=y
-        BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_14=y
-        BR2_TOOLCHAIN_EXTERNAL_CXX=y
-        BR2_TOOLCHAIN_EXTERNAL_HAS_SSP=y
-        BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+        BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_X86_CORE2_GLIBC_STABLE=y
         BR2_LINUX_KERNEL=y
         BR2_LINUX_KERNEL_CUSTOM_VERSION=y
         BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.26"