change FW version to hash-branch

Author: clumsy-stefan

board.mk

@@ -37,7 +37,7 @@ GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD 2>/dev/null | tr '/' '_' |
 GIT_HASH   := $(shell git rev-parse --short HEAD 2>/dev/null || echo "")
 
 # Limites to 16 characters
-VERSION_STR := $(shell echo "$(VERSION_FILE_CONTENT).$(GIT_BRANCH)-$(GIT_HASH)" | cut -c1-16)
+VERSION_STR := $(shell echo "$(GIT_HASH)-$(GIT_BRANCH)" | cut -c1-16)
 
 # Zigbee file version 4 bytes are:
 # APP_RELEASE, APP_BUILD, STACK_RELEASE, STACK_BUILD