MAINTAINERS: IPQ40XX: add pinctrl driver

Pinctrl drivers were moved to a dedicated directory but the entry was never
updated, so add the pinctrl-ipq4019 driver entry.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
diff --git a/MAINTAINERS b/MAINTAINERS
index dafeb4f..2c6de3a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -343,6 +343,7 @@
 F:	drivers/spi/spi-qup.c
 F:	drivers/net/mdio-ipq4019.c
 F:	drivers/rng/msm_rng.c
+F:	drivers/pinctrl/qcom/pinctrl-ipq4019.c
 
 ARM LAYERSCAPE SFP
 M:	Sean Anderson <sean.anderson@seco.com>