Build: Exchange RAM FS patches with build config

Remove patches enabling ITS_RAM_FS and PS_RAM_FS for ci testing.
Enable these options through build config.

Signed-off-by: Gabor Toth <gabor.toth@arm.com>
Change-Id: I1bbbdfc8febd52aab35c66a18dc8a03cbf4d36d2
(cherry picked from commit 150fab699ca9a2e681f1decad468ae38dfd769b2)
diff --git a/tfm_ci_pylib/tfm_build_manager.py b/tfm_ci_pylib/tfm_build_manager.py
index 1c59d95..3ec50a3 100644
--- a/tfm_ci_pylib/tfm_build_manager.py
+++ b/tfm_ci_pylib/tfm_build_manager.py
@@ -403,6 +403,11 @@
         if i.isolation_level == "3":
             overwrite_params["extra_params"] += " -DCMAKE_VERBOSE_MAKEFILE=ON"
 
+        if i.tfm_platform == "arm/musca_b1":
+            overwrite_params["extra_params"] += " -DPLATFORM_RAM_FS=ON"
+        if i.tfm_platform == "stm/stm32l562e_dk":
+            overwrite_params["extra_params"] += " -DPLATFORM_RAM_FS=ON"
+
         if i.test_psa_api == "IPC":
             overwrite_params["test_psa_api"] += " -DINCLUDE_PANIC_TESTS=1"
         if i.test_psa_api == "CRYPTO" and "musca" in i.tfm_platform: