support/config-fragments/autobuild: update CSV after musl toolchain rename

In commit a5893254055610e416316803de0095b0ce6f03f6
("support/config-fragments/autobuild: rename br-riscv64-musl config"),
the RISC-V 64-bit musl toolchain config snippet was renamed, but the
toolchain.csv file was not updated accordingly.

Due to this, utils/genrandconfig was no longer able to generate any
configuration.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

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

@@ -53,7 +53,7 @@ support/config-fragments/autobuild/br-powerpc-e500mc-full.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-musl.config,any
+support/config-fragments/autobuild/br-riscv64-internal-musl.config,any
 support/config-fragments/autobuild/br-sh4-full.config,x86_64
 support/config-fragments/autobuild/br-sparc-uclibc.config,x86_64
 support/config-fragments/autobuild/br-sparc64-glibc.config,x86_64