Fix syscall cancellation on hppa.

	* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h (PSEUDO): Fix CFA offset.
	Use .cfi_def_cfa_offset instead of .cfi_offset.  Don't record stack
	pointer offset.  Correct PIC register offset.  Don't mention frame
	related instructions in epilogue.
	(PUSHARGS_1): Correct offset.
	(PUSHARGS_2): Likewise.
	(PUSHARGS_3): Likewise.
	(PUSHARGS_4): Likewise.
	(PUSHARGS_5): Likewise.
	(PUSHARGS_6): Likewise.
	(POPARGS_1): Don't mention register restore.
	(POPARGS_2): Likewise.
	(POPARGS_3): Likewise.
	(POPARGS_4): Likewise.
	(POPARGS_5): Likewise.
	(POPARGS_6): Likewise.
	* sysdeps/unix/sysv/linux/hppa/sysdep.h (SAVE_PIC): Don't mention
	copy of PIC register.
	(LOAD_PIC): Likewise don't mention restore.
	(DO_CALL): Fix CFA offset.  Use .cfi_def_cfa_offset instead of
	.cfi_offset.  Don't record stack pointer offset.  Correct PIC register
	offset.  Don't mention frame related instructions in epilogue.