MAINTAINERS: Add phy-stih41x-usb.c to ARCH/STI architecture

This patch adds the new phy-sti41x-usb.c PHY driver found on
STMicroelectronics stih41x consumer electronics SoC's into the STI
arch section of the maintainers file.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 93fd8af..a5cdbe9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1399,6 +1399,7 @@
 F:	drivers/tty/serial/st-asc.c
 F:	drivers/mmc/host/sdhci-st.c
 F:	drivers/phy/phy-stih407-usb.c
+F:	drivers/phy/phy-stih41x-usb.c
 
 ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
 M:	Lennert Buytenhek <kernel@wantstofly.org>