ARM: move generic-y of exported headers to uapi/asm/Kbuild

Since commit fcc8487d477a ("uapi: export all headers under uapi
directories"), all (and only) headers under uapi directories are
exported, but asm-generic wrappers are still exceptions.

To complete de-coupling the uapi from kernel headers, move generic-y
of exported headers to uapi/asm/Kbuild.

With this change, "make headers_install" will just need to parse
uapi/asm/Kbuild to build up exported headers.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/include/asm/Kbuild

@@ -1,39 +1,23 @@
-
-
-generic-y += bitsperlong.h
 generic-y += clkdev.h
 generic-y += current.h
 generic-y += early_ioremap.h
 generic-y += emergency-restart.h
-generic-y += errno.h
 generic-y += exec.h
 generic-y += extable.h
-generic-y += ioctl.h
-generic-y += ipcbuf.h
 generic-y += irq_regs.h
 generic-y += kdebug.h
 generic-y += local.h
 generic-y += local64.h
 generic-y += mm-arch-hooks.h
-generic-y += msgbuf.h
 generic-y += msi.h
-generic-y += param.h
 generic-y += parport.h
-generic-y += poll.h
 generic-y += preempt.h
-generic-y += resource.h
 generic-y += rwsem.h
 generic-y += seccomp.h
 generic-y += segment.h
-generic-y += sembuf.h
 generic-y += serial.h
-generic-y += shmbuf.h
 generic-y += simd.h
 generic-y += sizes.h
-generic-y += socket.h
-generic-y += sockios.h
-generic-y += termbits.h
-generic-y += termios.h
 generic-y += timex.h
 generic-y += trace_clock.h
 generic-y += unaligned.h

arch/arm/include/uapi/asm/Kbuild

@@ -5,4 +5,18 @@ generated-y += unistd-common.h
 generated-y += unistd-oabi.h
 generated-y += unistd-eabi.h
 
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += ioctl.h
+generic-y += ipcbuf.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += termbits.h
+generic-y += termios.h