ARM: dts: dra71-evm: Correct evm_sd regulator max voltage

[ Upstream commit f4aa1bd5b4fc80f5f4ecd184caad832fd62c25f7 ]

Correct vpo_sd_1v8_3v3 regulator max voltage to 3.3V

Fixes: 9868bc585ae2 ("ARM: dts: Add support for dra718-evm")
Signed-off-by: Ravikumar Kattekola <rk@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>