.gitignore: ignore vi swap files and ctags files

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>

.gitignore

@@ -51,6 +51,8 @@ QMP/qmp-commands.txt
 *.vr
 *.d
 *.o
+*.swp
+*.orig
 .pc
 patches
 pc-bios/bios-pq/status
@@ -60,3 +62,4 @@ pc-bios/optionrom/multiboot.bin
 pc-bios/optionrom/multiboot.raw
 .stgit-*
 cscope.*
+tags