m68k: switch to using the asm-generic auxvec.h

We don't need a local auxvec.h, switch to using the asm-generic version.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/include/uapi/asm/Kbuild

 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
+generic-y += auxvec.h
+
 header-y += a.out.h
-header-y += auxvec.h
 header-y += byteorder.h
 header-y += cachectl.h
 header-y += fcntl.h

arch/m68k/include/uapi/asm/auxvec.h

-#ifndef __ASMm68k_AUXVEC_H
-#define __ASMm68k_AUXVEC_H
-
-#endif