* alphabsd-nat.c: Update copyright year. Include "inf-ptrace.h".

* alphabsd-nat.c: Update copyright year.  Include "inf-ptrace.h".
(alphabsd_fetch_inferior_registers): Rename from
fetch_inferior_registers.  Make static.
(alphabsd_store_inferior_registers): Rename from
store_inferior_registers.  Make static.
(_initialize_alphabsd_nat): New function.
* Makefile.in (alphabsd-nat.o): Update dependencies.
* config/alpha/fbsd.mh (NATDEPFILES): Remove infptrace.o and
inftarg.o.  Add inf-ptrace.o, fbsd-nat.o and gcore.o.
* config/alpha/nbsd.mh (NAT_CLIBS): Remove variable.
(NATDEPFILES): Remove infptrace.o and inftarg.o.  Add
alphabsd-nat.o.
* config/alpha/nm-fbsd.h: Update copyright year.  Don't include
"config/nm-bsd.h" and "elf/common.h".
* config/alpha/nm-nbsd.h: Update copyright year.  Don't include
"config/nm-nbsd.h".