intel_reg: introduce one intel_reg tool to rule them all

Three Tools for the Elven-kings under the sky,
	Seven for the Dwarf-lords in their halls of stone,
	Nine for Mortal Men doomed to die,
	One for the Dark Lord on his dark throne
	In the Land of Mordor where the Shadows lie.
	One Tool to rule them all, One Tool to find them,
	One Tool to bring them all and in the darkness bind them
	In the Land of Mordor where the Shadows lie.

		J.R.R. Tolkien's epigraph to The Lord of The Tools
		 | sed 's/Ring/Tool/g'

Introduce intel_reg as the one Intel graphics register multitool to
replace intel_reg_read, intel_reg_write, intel_iosf_sb_read,
intel_iosf_sb_write, intel_vga_read, intel_vga_write, intel_reg_dumper,
intel_reg_snapshot, and quick_dump.py.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

tools/Makefile.sources

@@ -5,6 +5,7 @@ noinst_PROGRAMS = \
 
 bin_PROGRAMS = 				\
 	intel_audio_dump 		\
+	intel_reg			\
 	intel_backlight 		\
 	intel_bios_dumper 		\
 	intel_bios_reader 		\
@@ -40,6 +41,11 @@ dist_bin_SCRIPTS = intel_gpu_abrt
 intel_dump_decode_SOURCES = 	\
 	intel_dump_decode.c
 
+intel_reg_SOURCES =		\
+	intel_reg.c		\
+	intel_reg_decode.c	\
+	intel_reg_spec.c
+
 intel_error_decode_SOURCES =	\
 	intel_error_decode.c