Try again to disable LTO

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

compiler-rt.spec

@@ -13,6 +13,10 @@
 %global _lto_cflags %{nil}
 %endif
 
+%ifarch riscv64
+%define _lto_cflags %{nil}
+%endif
+
 Name:		compiler-rt
 Version:	%{compiler_rt_version}%{?rc_ver:~rc%{rc_ver}}
 Release:	2.0.riscv64%{?dist}
@@ -50,6 +54,10 @@ instrumentation, and Blocks C language extension.
 %py3_shebang_fix lib/hwasan/scripts/hwasan_symbolize
 
 %build
+%ifarch riscv64
+%define _lto_cflags %{nil}
+%endif
+
 # Copy CFLAGS into ASMFLAGS, so -fcf-protection is used when compiling assembly files.
 export ASMFLAGS=$CFLAGS