.gitignore update

headers_install by default puts headers into usr/include/ .
They're auto-generated, so should be ignored.

Same for *.orig, *.rej .
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

.gitignore

@@ -45,3 +45,6 @@ series
 
 # cscope files
 cscope.*
+
+*.orig
+*.rej

usr/.gitignore

@@ -5,3 +5,4 @@ gen_init_cpio
 initramfs_data.cpio
 initramfs_data.cpio.gz
 initramfs_list
+include