WS cleanup: remove SPACE(s) followed by TAB

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/doc/device-tree-bindings/mailbox/k3-secure-proxy.txt b/doc/device-tree-bindings/mailbox/k3-secure-proxy.txt
index f3add0d..c25d709 100644
--- a/doc/device-tree-bindings/mailbox/k3-secure-proxy.txt
+++ b/doc/device-tree-bindings/mailbox/k3-secure-proxy.txt
@@ -10,7 +10,7 @@
 Required properties:
 --------------------
 - compatible:		Shall be: "ti,am654-secure-proxy"
-- reg-names 		data - Map the data region
+- reg-names		data - Map the data region
 			scfg - Map the secure configuration region
 			rt - Map the Realtime region.
 - reg:			Contains the register map per reg-names.