[rdkb][mt7988][bsp][Add Marvell AQR113C firmware build in]

[Description]
Add Marvell AQR113C firmware build in

[Release-log]

diff --git a/recipes-core/images/rdk-generic-broadband-image.bbappend b/recipes-core/images/rdk-generic-broadband-image.bbappend
index c8bba8d..d2c9f67 100644
--- a/recipes-core/images/rdk-generic-broadband-image.bbappend
+++ b/recipes-core/images/rdk-generic-broadband-image.bbappend
@@ -40,6 +40,8 @@
     "
 #IMAGE_INSTALL += " opensync openvswitch mesh-agent e2fsprogs "
 
+IMAGE_INSTALL_append_mt7988 += " marvell-eth-firmware "
+
 BB_HASH_IGNORE_MISMATCH = "1"
 IMAGE_NAME[vardepsexclude] = "DATETIME"