[SYCL] Keep bfloat16 native and fallback spv for compatibility (intel#19873)

This is a cherry-pick of intel#19780

Previously, we stopped building and deploying native/fallback bfloat16
spv files since latest compiler will embed required files into user's
executable. However, we found some developers hadn't switched to latest
compiler, then compatibility issue would happen. This PR continues to
build and deploy, we will remove the files util a major release.

Patch-by: jinge90 <[email protected]>

Author: AlexeySachkov

libdevice/cmake/modules/SYCLLibdevice.cmake

@@ -602,12 +602,10 @@ add_devicelibs(libsycl-fallback-cmath-fp64
   DEPENDENCIES ${cmath_obj_deps})
 add_devicelibs(libsycl-fallback-bfloat16
   SRC fallback-bfloat16.cpp
-  FILETYPES "${filetypes_no_spv}"
   BUILD_ARCHS ${full_build_archs}
   DEPENDENCIES ${bfloat16_obj_deps})
 add_devicelibs(libsycl-native-bfloat16
   SRC bfloat16_wrapper.cpp
-  FILETYPES "${filetypes_no_spv}"
   BUILD_ARCHS ${full_build_archs}
   DEPENDENCIES ${bfloat16_obj_deps})