ARC: Replace __ASSEMBLY__ with __ASSEMBLER__ in the non-uapi headers

While the GCC and Clang compilers already define __ASSEMBLER__
automatically when compiling assembly code, __ASSEMBLY__ is a
macro that only gets defined by the Makefiles in the kernel.
This can be very confusing when switching between userspace
and kernelspace coding, or when dealing with uapi headers that
rather should use __ASSEMBLER__ instead. So let's standardize on
the __ASSEMBLER__ macro that is provided by the compilers now.

This is a completely mechanical patch (done with a simple "sed -i"
statement).

Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>

arch/arc/include/asm/pgtable.h

@@ -19,7 +19,7 @@
  */
 #define	USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 
 extern char empty_zero_page[PAGE_SIZE];
 #define ZERO_PAGE(vaddr)	(virt_to_page(empty_zero_page))
@@ -29,6 +29,6 @@ extern pgd_t swapper_pg_dir[] __aligned(PAGE_SIZE);
 /* to cope with aliasing VIPT cache */
 #define HAVE_ARCH_UNMAPPED_AREA
 
-#endif /* __ASSEMBLY__ */
+#endif /* __ASSEMBLER__ */
 
 #endif