arm64: dts: k3-am68-sk: Fix pin mux csi for OV5640 overlay

commit 7e7d44cc4b3b9694558f7e81bb1fdebb63007090 from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git



After splitting the wkup_pmx into four region.
CSI pin mux  was falling outside the assigned region.

Fixes: c33b294d75dd ("arm64: dts: ti: k3-j721s2: Fix wkup pinmux range")

Cc: Vaishnav Achath <vaishnav.a@ti.com>
Cc: Sinthu Raja <sinthu.raja@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>