ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp157c-emstamp-argon

ARM: dts: stm32: Fix qspi pinctrl phandle for stm32mp157c-emstamp-argon

[ Upstream commit 51b5af4cc2729b9491c5b34f3da1e5ddb1ab9101 ]

Chip select pinctrl phandle was missing in several stm32mp15x based boards.

Fixes: 71c422c42a2b ("ARM: dts: stm32: Create separate pinmux for qspi cs pin in stm32mp15-pinctrl.dtsi")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Reinhold Mueller <reinhold.mueller@emtrion.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>