dts: stm: stm32f469: Remove duplicated setting of pin-controller reg
dts: stm: stm32f469: Remove duplicated setting of pin-controller reg

pin-controller reg is already set in stm32f407.dtsi which we include in
stm32f469.dtsi so no need to set it again.

Signed-off-by: Kumar Gala <a5e5248af4cd4f0ed8c515f61d40a6e2db46a66e@linaro.org>

fbsder/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,zephyriot/zephyr,GiulianoFranchetto/zephyr,fbsder/zephyr,aceofall/zephyr-iotos,runchip/zephyr-cc3220,explora26/zephyr,explora26/zephyr,finikorg/zephyr,zephyriot/zephyr,kraj/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,Vudentz/zephyr,finikorg/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,punitvara/zephyr,nashif/zephyr,rsalveti/zephyr,nashif/zephyr,nashif/zephyr,rsalveti/zephyr,mbolivar/zephyr,mbolivar/zephyr,aceofall/zephyr-iotos,ldts/zephyr,ldts/zephyr,Vudentz/zephyr,galak/zephyr,aceofall/zephyr-iotos,kraj/zephyr,kraj/zephyr,rsalveti/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr,Vudentz/zephyr,aceofall/zephyr-iotos,runchip/zephyr-cc3220,galak/zephyr,kraj/zephyr,fbsder/zephyr,finikorg/zephyr,zephyriot/zephyr,zephyriot/zephyr,runchip/zephyr-cc3220,galak/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,explora26/zephyr,punitvara/zephyr,explora26/zephyr,Vudentz/zephyr,kraj/zephyr,rsalveti/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,fbsder/zephyr,runchip/zephyr-cc3220,fbsder/zephyr,zephyrproject-rtos/zephyr,zephyriot/zephyr,mbolivar/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,rsalveti/zephyr,ldts/zephyr,nashif/zephyr,runchip/zephyr-cc3220,Vudentz/zephyr,zephyrproject-rtos/zephyr,mbolivar/zephyr,explora26/zephyr,Vudentz/zephyr,finikorg/zephyr,mbolivar/zephyr