[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 in some cases we don't have the latest
tags from upstream
For example for TF-M 2.1.2 the latest tag was TF-Mv2.1.0, probably
because between the two versions upmerges have been done with
cherry picks instead of upstream tag merging.

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 <tomi.fontanilles@nordicsemi.no>

Author: tomi-font

cmake/version.cmake

@@ -8,13 +8,7 @@
 # The 'TFM_VERSION_MANUAL' is used for fallback when Git tags are not available
 set(TFM_VERSION_MANUAL "2.2.0")
 
-execute_process(COMMAND git describe --tags --always
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    OUTPUT_VARIABLE TFM_VERSION_FULL
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-    RESULTS_VARIABLE GIT_RESULT)
-
-if(GIT_RESULT EQUAL 128)
+if(TRUE)
     # Git execution fails.
     # Applying a manual version assuming the code tree is a local copy.
     set(TFM_VERSION_FULL "v${TFM_VERSION_MANUAL}")