support/config-fragments/autobuild: use Bootlin toolchain for RISC-V 32 glibc

Instead of using an external toolchain built specifically for the
autobuilders to test RISC-V 32/glibc, use a pre-built Bootlin
toolchain.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

support/config-fragments/autobuild/bootlin-riscv32-glibc.config

@@ -0,0 +1,5 @@
+BR2_riscv=y
+BR2_RISCV_32=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_RISCV32_ILP32D_GLIBC_BLEEDING_EDGE=y

support/config-fragments/autobuild/br-riscv32.config

@@ -1,9 +0,0 @@
-BR2_riscv=y
-BR2_RISCV_32=y
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-riscv32-glibc-2020.02.tar.bz2"
-BR2_TOOLCHAIN_EXTERNAL_GCC_8=y
-BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_19=y
-BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
-BR2_TOOLCHAIN_EXTERNAL_CXX=y

support/config-fragments/autobuild/toolchain-configs.csv

@@ -36,6 +36,7 @@ support/config-fragments/autobuild/bootlin-nios2-glibc.config,x86_64
 support/config-fragments/autobuild/bootlin-openrisc-uclibc.config,x86_64
 support/config-fragments/autobuild/bootlin-powerpc64le-power8-glibc.config,x86_64
 support/config-fragments/autobuild/bootlin-powerpc-e500mc-uclibc.config,x86_64
+support/config-fragments/autobuild/bootlin-riscv32-glibc.config,x86_64
 support/config-fragments/autobuild/bootlin-x86-64-glibc.config,x86_64
 support/config-fragments/autobuild/br-arc-full-internal.config,any
 support/config-fragments/autobuild/br-arc-internal-glibc.config,any
@@ -52,7 +53,6 @@ support/config-fragments/autobuild/br-mips64r6-el-hf-glibc.config,x86_64
 support/config-fragments/autobuild/br-powerpc-603e-basic-cpp.config,x86_64
 support/config-fragments/autobuild/br-powerpc64-power7-glibc.config,x86_64
 support/config-fragments/autobuild/br-powerpc-internal-full.config,any
-support/config-fragments/autobuild/br-riscv32.config,x86_64
 support/config-fragments/autobuild/br-riscv64.config,x86_64
 support/config-fragments/autobuild/br-riscv64-full-internal.config,any
 support/config-fragments/autobuild/br-riscv64-musl.config,x86_64