mips64: Add generic mips64 target support

Change-Id: I2bdd2573f23e65652686d18031698f423eec77c0
Signed-off-by: Konstantin Kostyukhin <kost@niisi.msk.ru>
Signed-off-by: Aleksey Kuleshov <rndfax@yandex.ru>
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
CC: Dongxue Zhang <elta.era@gmail.com>
CC: Paul Fertser <fercerpav@gmail.com>
CC: Salvador Arroyo <sarroyofdez@yahoo.es>
CC: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/2322
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>

src/target/Makefile.am

@@ -125,6 +125,7 @@ MIPS64_SRC = \
 	%D%/mips64.c \
 	%D%/mips32_pracc.c \
 	%D%/mips64_pracc.c \
+	%D%/mips_mips64.c \
 	%D%/trace.c \
 	%D%/mips_ejtag.c
 
@@ -203,6 +204,7 @@ ESIRISC_SRC = \
 	%D%/mips32.h \
 	%D%/mips64.h \
 	%D%/mips_m4k.h \
+	%D%/mips_mips64.h \
 	%D%/mips_ejtag.h \
 	%D%/mips32_pracc.h \
 	%D%/mips32_dmaacc.h \