[Nvidia-Bluefield] Update SAI to SAIBuild0.0.48.0, FW to v48.0318 (#25168)

- Why I did it
To include latest fixes and new functionality

- How I did it
SDK_VERSION_DPU 25.10-RC5 -> 26.1-RC1
FW_VERSION 47.1080 -> 48.0318
SAI_VERSION SAIBuild0.0.47.0 -> SAIBuild0.0.48.0

- How to verify it
Build an image and run tests from "sonic-mgmt".

Signed-off-by: Oleksandr Ivantsiv <oivantsiv@nvidia.com>
Signed-off-by: dprital <drorp@nvidia.com>

Author: oleksandrivantsiv

platform/nvidia-bluefield/recipes/dpu-sai.mk

@@ -15,7 +15,7 @@
 # limitations under the License.
 #
 
-DPU_SAI_VERSION = SAIBuild0.0.47.0
+DPU_SAI_VERSION = SAIBuild0.0.48.0
 
 # Place here URL where SAI sources exist
 DPU_SAI_SOURCE_BASE_URL=

platform/nvidia-bluefield/recipes/fw.mk

@@ -19,7 +19,7 @@ DPU_NIC_FW_BASE_URL =
 DPU_NIC_FW_VERSION =
 BF3_FW_BASE_URL =
 
-BF3_FW_VERSION = 47.1080
+BF3_FW_VERSION = 48.0318
 
 BF3_FW_FILE = fw-BlueField-3-rel-32_$(subst .,_,$(BF3_FW_VERSION)).mfa
 

platform/nvidia-bluefield/recipes/sdk.mk

@@ -20,7 +20,7 @@ SDK_BASE_PATH = $(PLATFORM_PATH)/sdk-src/sonic-bluefield-packages/bin
 
 # Place here URL where SDK sources exist
 SDK_SOURCE_BASE_URL =
-SDK_VERSION = 25.10-RC5
+SDK_VERSION = 26.1-RC1
 
 SDK_COLLECTX_URL = https://linux.mellanox.com/public/repo/doca/1.5.2/debian12/aarch64/