[][openwrt-24][common][bsp][Update readme for unified autobuild bpi-r4]

[Description]
Update readme for unified autobuild bpi-r4

[Release-log]
N/A

Change-Id: I113a65211fc6d1b863b85d6727fc1c0d304791e7
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9736197
diff --git a/autobuild/unified/Readme.md b/autobuild/unified/Readme.md
index 9dd2b9f..ce24279 100644
--- a/autobuild/unified/Readme.md
+++ b/autobuild/unified/Readme.md
@@ -70,7 +70,7 @@
   - Platform
     - Support RTL8261N 10G PHY
     - Support MTK Prpl Reference Board, BE19000
-    - Support BananaPi Boards (BPI-R4), BE14000
+    - Support BananaPi BPI-R4, BE14000
 
   - WiFi - Basic WiFi7 EHT SU (not support MLO)
     - 320 MHz bandwidth
@@ -96,8 +96,8 @@
 bash ../mtk-openwrt-feeds/autobuild/unified/autobuild.sh filogic-mac80211-BE19000 log_file=make
 ## 2. MTK Prpl Reference Board (Mozart)
 bash ../mtk-openwrt-feeds/autobuild/unified/autobuild.sh filogic-mac80211-mozart log_file=make
-## 2. BananaPi Boards (BPI-R4)
-bash ../mtk-openwrt-feeds/autobuild/unified/autobuild.sh filogic-mac80211-bpi log_file=make
+## 2. BananaPi BPI-R4
+bash ../mtk-openwrt-feeds/autobuild/unified/autobuild.sh filogic-mac80211-bpi-r4 log_file=make
 
 #Further Build (After 1st full build)
 bash ../mtk-openwrt-feeds/autobuild/unified/autobuild.sh build