gitignore: misc files

Ignore all files generated from *_shipped files, plus a few others.

Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/drivers/md/.gitignore b/drivers/md/.gitignore
new file mode 100644
index 0000000..a7afec6
--- /dev/null
+++ b/drivers/md/.gitignore
@@ -0,0 +1,4 @@
+mktables
+raid6altivec*.c
+raid6int*.c
+raid6tables.c