Fix docker build error due to new NRF SDK download location

It seems like NRF has moved the download to a new location- Update the build script to fetch from the same URL the download website currently provides.

Author: dariusarnold

docker/build.sh

@@ -17,7 +17,7 @@ export npm_config_cache="${NPM_DIR}"
 
 export BUILD_TYPE=${BUILD_TYPE:=Release}
 export GCC_ARM_VER=${GCC_ARM_VER:="10.3-2021.10"}
-export NRF_SDK_VER=${NRF_SDK_VER:="nRF5_SDK_15.3.0_59ac345"}
+export NRF_SDK_VER=${NRF_SDK_VER:="nrf5sdk153059ac345"}
 
 MACHINE="$(uname -m)"
 [ "$MACHINE" = "arm64" ] && MACHINE="aarch64"
@@ -55,7 +55,7 @@ GetMcuBoot() {
 }
 
 GetNrfSdk() {
-  wget -q "https://developer.nordicsemi.com/nRF5_SDK/nRF5_SDK_v15.x.x/$NRF_SDK_VER.zip" -O /tmp/$NRF_SDK_VER
+  wget -q "https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/sdks/nrf5/binaries/$NRF_SDK_VER.zip" -O /tmp/$NRF_SDK_VER
   unzip -q /tmp/$NRF_SDK_VER -d "$TOOLS_DIR/"
   rm /tmp/$NRF_SDK_VER
 }