Fix TAEF lookup for nuget and SDK paths (microsoft#5452)

The standard TAEF install paths use the x64 and x86 paths just like the
TAEF_ARCH. I'm not entirely sure where the alternative TAEF_BIN_ARCH
naming is used, but it seems to be used in the custom tooling for
fetching and building TAEF.

This only alters the parts of the code that I've been able to verify
locally.

cmake/modules/FindTAEF.cmake

@@ -56,13 +56,12 @@ elseif ((CMAKE_GENERATOR_PLATFORM MATCHES "ARM.*") OR ("${CMAKE_C_COMPILER_ARCHI
 endif((CMAKE_GENERATOR_PLATFORM STREQUAL "x64") OR ("${CMAKE_C_COMPILER_ARCHITECTURE_ID}" STREQUAL "x64"))
 
 set (TAEF_ARCH ${TAEF_ARCH} CACHE INTERNAL "arch for taef test")
-
 find_program(TAEF_EXECUTABLE te.exe PATHS
   $ENV{TAEF_PATH}
   ${CMAKE_SOURCE_DIR}/external/taef/build/Binaries/${TAEF_BIN_ARCH}
   $ENV{HLSL_TAEF_DIR}/${TAEF_BIN_ARCH}
-  ${TAEF_NUGET_BIN}/${TAEF_BIN_ARCH}
-  ${TAEF_SDK_BIN}/${TAEF_BIN_ARCH}
+  ${TAEF_NUGET_BIN}/${TAEF_ARCH}
+  ${TAEF_SDK_BIN}/${TAEF_ARCH}
   ${WINDOWS_KIT_10_PATH}
   ${WINDOWS_KIT_81_PATH}
   )