[nrf noup] build: fix TF-M version

The TF-M build system retrieves the latest tag to figure out the TF-M
version.
It ends up being wrong because for example as of TF-M 2.1.2 in the commit
history the latest tag is TF-Mv2.1.0.
We don't have tags from upstream, but for some reason still have some of
them, which makes it confusing.

Completely stop relying on the tags and only use TFM_VERSION_MANUAL as
the version.
This fixes the TF-M version printed on boot.

Signed-off-by: Tomi Fontanilles <[email protected]>

Author: tomi-font

cmake/version.cmake

@@ -8,25 +8,9 @@
 # The 'TFM_VERSION_MANUAL' is used for fallback when Git tags are not available
 set(TFM_VERSION_MANUAL "2.1.2")
 
-execute_process(COMMAND git describe --tags --always
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    OUTPUT_VARIABLE TFM_VERSION_FULL
-    OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-# In a repository cloned with --no-tags option TFM_VERSION_FULL will be a hash
-# only hence checking it for a tag format to accept as valid version.
-
-string(FIND ${TFM_VERSION_FULL} "TF-M" TFM_TAG)
-if(TFM_TAG EQUAL -1)
-    set(TFM_VERSION_FULL v${TFM_VERSION_MANUAL})
-endif()
+set(TFM_VERSION_FULL v${TFM_VERSION_MANUAL})
 
 string(REGEX REPLACE "TF-M" "" TFM_VERSION_FULL ${TFM_VERSION_FULL})
 # remove a commit number
 string(REGEX REPLACE "-[0-9]+-g" "+" TFM_VERSION_FULL ${TFM_VERSION_FULL})
 string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" TFM_VERSION ${TFM_VERSION_FULL})
-
-# Check that manually set version is up to date
-if (NOT TFM_VERSION_MANUAL STREQUAL TFM_VERSION)
-    message(WARNING "TFM_VERSION_MANUAL mismatches to actual TF-M version. Please update TFM_VERSION_MANUAL in cmake/version.cmake")
-endif()