curl: Fix build failure for qemuriscv64

curl: Fix build failure for qemuriscv64

Backport a patch from upstream to fix the following build failure.

tmp-glibc/work/riscv64-wrs-linux/curl/7.84.0-r0/recipe-sysroot-native/
usr/bin/riscv64-wrs-linux/../../libexec/riscv64-wrs-linux/gcc/
riscv64-wrs-linux/12.1.0/ld: ../lib/.libs/libcurl.so:
undefined reference to `__atomic_exchange_1'
collect2: error: ld returned 1 exit status

Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>