Change to GNU compliant formatting. Some generic changes.

2013-01-30  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* arc-linux-tdep.c: Remove superfluous general comments.
	(gdbarch.h): Included after degs.h.
	(ARC_NR_REGS): Updated with explicit value.
	(Boolean): Replace with int throughout.
	(next_pc): Add gdbarch argument to arc_initialize_disassembler.
More rigorous printing of values.

2013-01-30  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* arc-tdep.c (arc_print_frame_info): Use print_core_address to
	print CORE_ADDR values, use phex for saved addresses.
	(arc_unwind_pc, arc_unwind_sp): Use CORE_ADDR throughout and
	print_core_address to print values.
	(arc_find_this_sp): Use phex to print hex values.
	(arc_scan_prologue, arc_push_dummy_call): Use print_core_address
	to print CORE_ADDR values.
	(arc_extract_return_value, arc_store_return_value): Use phex to
	print hex values.
	* arc-tdep.h (BYTES_IN_ADDRESS): Added.