Add the state engine picture

Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
diff --git a/pics/fsm.odg b/pics/fsm.odg
new file mode 100644
index 0000000..a258c42
--- /dev/null
+++ b/pics/fsm.odg
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diff --git a/pics/fsm.png b/pics/fsm.png
new file mode 100644
index 0000000..2507292
--- /dev/null
+++ b/pics/fsm.png
Binary files differ