mainboard/google/ocelot: Set OEM footer logo bottom margin

Apply a `logo_bottom_margin` of 100 pixels to the `common_soc_config`
for Ocelot. This configures the OEM footer logo to be rendered 100
pixels above the bottom edge of the screen.

Change-Id: Ia7436ab267f91771ee2c0e91743ddaf43280cc87
Signed-off-by: Avi Uday <aviuday@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88936
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Pranava Y N <pranavayn@google.com>

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

@@ -112,6 +112,8 @@ chip soc/intel/pantherlake
 	#| I2C5              | Touchpad                  |
 	#+-------------------+---------------------------+
 	register "common_soc_config" = "{
+		/* Render OEM footer logo 100px above from the edge */
+		.logo_bottom_margin = 100,
 		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,