Don't enable asm if OPENSSL_NO_ASM is set.

This fixes the FIPS+OPENSSL_NO_ASM build.

Change-Id: Iadbf911711b3d9d86ae03dc67d5c868359170fa2
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/71107
Auto-Submit: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/71127

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 26fad80..cb1f64b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -365,7 +365,9 @@
     set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -gcv8")
   else()
     enable_language(ASM)
-    set(OPENSSL_ASM TRUE)
+    if (NOT OPENSSL_NO_ASM)
+      set(OPENSSL_ASM TRUE)
+    endif()
     # Work around https://gitlab.kitware.com/cmake/cmake/-/issues/20771 in older
     # CMake versions.
     if(APPLE AND CMAKE_VERSION VERSION_LESS 3.19)