Update dist-riscv64-linux to use binutils 2.36

The zicsr feature has been split off from the base ISA. A newer
binutils version is required to recognize it.

Author: nikic

src/ci/docker/host-x86_64/dist-riscv64-linux/riscv64-unknown-linux-gnu.defconfig

@@ -10,7 +10,7 @@ CT_ARCH_64=y
 CT_ARCH_ARCH="rv64gc"
 CT_KERNEL_LINUX=y
 CT_LINUX_V_4_20=y
-CT_BINUTILS_V_2_32=y
+CT_BINUTILS_V_2_36=y
 CT_GLIBC_V_2_29=y
 CT_GCC_V_8=y
 CT_CC_LANG_CXX=y