dts: vendor-prefixes: deprecate facebook and add meta

Although there are no in-tree users, we will deprecate the
`facebook` vendor prefix and add `meta`.

Signed-off-by: Christopher Friedt <cfriedt@meta.com>

Author: cfriedt

dts/bindings/vendor-prefixes.txt

@@ -205,7 +205,7 @@ evervision	Evervision Electronics Co. Ltd.
 exar	Exar Corporation
 excito	Excito
 ezchip	EZchip Semiconductor
-facebook	Facebook
+facebook	Facebook (deprecated, use meta)
 fairphone	Fairphone B.V.
 faraday	Faraday Technology Corporation
 fastrax	Fastrax Oy
@@ -375,6 +375,7 @@ menlo	Menlo Systems GmbH
 mentor	Mentor Graphics
 meraki	Cisco Meraki, LLC
 merrii	Merrii Technology Co., Ltd.
+meta	Meta Platforms, Inc.
 micrel	Micrel Inc.
 microbit	Micro:bit Educational Foundation
 microchip	Microchip Technology Inc.