qemu-ga: Add .msi files to .gitignore

Signed-off-by: NLeonid Bloch <leonid@daynix.com>
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

.gitignore

@@ -58,6 +58,7 @@
 *.cp
 *.dvi
 *.exe
+*.msi
 *.dll
 *.so
 *.mo