build: cmake: Ignore UnifySDK LFS

This prevent the following error:

```
34.68 Downloading docker/uic-resources/linux/slc_cli_linux.zip (208 MB)
34.82 Error downloading object: docker/uic-resources/linux/slc_cli_linux.zip (4163ec1): Smudge error: Error downloading docker/uic-resources/linux/slc_cli_linux.zip (4163ec1a48e63dbde26a7e589a1af569f82d9cbbe11fd71742ff0ae2f726e292): batch response: This repository exceeded its LFS budget. The account responsible for the budget should increase it to restore access.
```

Origin: SiliconLabsSoftware#83
Relate-to: SiliconLabsSoftware/z-wave-engine-application-layer#11
Relate-to: UIC-3077
Signed-off-by: Philippe Coval <[email protected]>

Author: rzr

cmake/modules/FindUnifySDK.cmake

@@ -34,13 +34,15 @@ file(GLOB UNIFYSDK_PATCHES
   ${PROJECT_SOURCE_DIR}/patches/UnifySDK/*.patch
 )
 
+set(ENV{GIT_LFS_SKIP_SMUDGE} "1")
 find_package(Git)
 FetchContent_Declare(
   UnifySDK
   GIT_REPOSITORY ${UNIFYSDK_GIT_REPOSITORY}
   GIT_TAG        ${UNIFYSDK_GIT_TAG}
   GIT_SUBMODULES_RECURSE True
   GIT_SHALLOW 1
+  GIT_PROGRESS True
 
   # Prevent "fatal: unable to auto-detect email address"
   GIT_CONFIG [email protected]