drivers: wifi: Update RPU patch to release/v2.6 rev#389d3d50b9a

RPU patch version update from 1.2.10.8 to 1.2.10.9.
Dynamic Bandwidth Signalling firmware changes for updating reason code
during disconnect due to DBS AP.

Signed-off-by: Karun Kumar Eagalapati <[email protected]>

Author: karun2796

nrf_wifi/fw_bins/default/nrf70.bin

@@ -57,6 +57,6 @@ struct nrf70_fw_image_info {
 #define RPU_FAMILY         (1)
 #define RPU_MAJOR_VERSION   (2)
 #define RPU_MINOR_VERSION   (10)
-#define RPU_PATCH_VERSION   (8)
+#define RPU_PATCH_VERSION   (9)
 
 #endif /* _PATCH_INFO_H */