mainboard/google/oceot: Drop redundant logo_valignment selection

This commit removes the explicit `logo_valignment` setting from the
`common_soc_config` for Ocelot.

The default vertical alignment for the splash screen logo is
`FW_SPLASH_VALIGNMENT_CENTER`, which is the desired behavior for ocelot.

Change-Id: I967c6f0b6926d23a399d01197dbed9e40b979aff
Signed-off-by: Avi Uday <aviuday@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88935
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Pranava Y N <pranavayn@google.com>

src/mainboard/google/ocelot/variants/ocelot/overridetree.cb

@@ -111,7 +111,6 @@ chip soc/intel/pantherlake
 	#| I2C5              | Touchpad                  |
 	#+-------------------+---------------------------+
 	register "common_soc_config" = "{
-		.logo_valignment = FW_SPLASH_VALIGNMENT_MIDDLE,
 		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,