MAINTAINERS: add maintainer for Realtek fingerprint SoC

This commit adds maintainer of Realtek fingerprint SoC to maintainers.yml

Signed-off-by: Darcy Lu <darcy_lu@realsil.com.cn>

Author: RtkFP

MAINTAINERS.yml

@@ -4169,6 +4169,19 @@ OpenTitan Platforms:
   description: >-
     OpenTitan boards, SOCs, dts files and related drivers.
 
+Realtek Fingerprint Platforms:
+  status: maintained
+  maintainers:
+    - RtkFP
+  files:
+    - boards/realtek/rts5817_maa_evb/
+    - drivers/*/*rts5817*
+    - dts/bindings/*/*rts5817*
+    - dts/arm/realtek/fingerprint/
+    - soc/realtek/fingerprint/
+  labels:
+    - "platform: Realtek Fingerprint"
+
 Realtek EC Platforms:
   status: maintained
   maintainers: