arm64: dts: imx8mq-librem5: Fix tps65132 compatible

The valid compatible string for the tps65132 regulator
is "ti,tps65132".

Change it.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

@@ -1001,7 +1001,7 @@ magnetometer: magnetometer@1e	{
 	};
 
 	regulator@3e {
-		compatible = "tps65132";
+		compatible = "ti,tps65132";
 		reg = <0x3e>;
 
 		reg_lcd_avdd: outp {