Add ASM platform information for HP compiler on HP

Among other flags this sets RPATH flags correctly so that CMake knows
how to treat CMAKE_PLATFORM_REQUIRED_RUNTIME_PATH for the ASM language.

Modules/Platform/HP-UX-HP-ASM.cmake

@@ -0,0 +1,6 @@
+include(Platform/HP-UX-HP)
+__hpux_compiler_hp(ASM)
+
+set(CMAKE_SHARED_LIBRARY_CREATE_ASM_FLAGS "-E -b +nodefaultrpath -L/usr/lib")
+
+set(CMAKE_ASM_CREATE_SHARED_LIBRARY "ld <CMAKE_SHARED_LIBRARY_CREATE_ASM_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_ASM_FLAG><TARGET_SONAME> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")

Modules/Platform/HP-UX-HP.cmake

@@ -20,6 +20,7 @@ set(__HPUX_COMPILER_HP 1)
 set(_Wl_C "")
 set(_Wl_CXX "-Wl,")
 set(_Wl_Fortran "")
+set(_Wl_ASM "")
 
 macro(__hpux_compiler_hp lang)
   set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "+Z")