ASM: Identify Microsoft assemblers more specifically

Other tools may print "Microsoft" when invoked with `-?`, such as `cl`.
Look for output specific to the Microsoft Macro Assembler and its ARM
variant.

Modules/CMakeDetermineASMCompiler.cmake

@@ -96,7 +96,7 @@ if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
 
   list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS MSVC )
   set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_MSVC "-?")
-  set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_MSVC "Microsoft")
+  set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_REGEX_MSVC "Microsoft.*Macro Assembler")
 
   list(APPEND CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDORS TI )
   set(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_VENDOR_FLAGS_TI "-h")