The RISC-V 32-bit toolchain is using a recent glibc version that no
longer has RPC support. Thanks to the change in
gen-bootlin-toolchains, this is now properly detected.
Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/849510531
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>