MLECO-1982: Update to using latest ethos-u embedded components

Change-Id: I744a4eb2553207004c9403b956e5bd9e9b352bfb
Signed-off-by: Isabella Gottardi <isabella.gottardi@arm.com>
diff --git a/scripts/cmake/toolchains/bare-metal-armclang.cmake b/scripts/cmake/toolchains/bare-metal-armclang.cmake
index 0a86eb6..d07aa9e 100644
--- a/scripts/cmake/toolchains/bare-metal-armclang.cmake
+++ b/scripts/cmake/toolchains/bare-metal-armclang.cmake
@@ -25,7 +25,7 @@
 set(CMAKE_CROSSCOMPILING            true)
 set(CMAKE_SYSTEM_NAME               Generic)
 
-set(MIN_ARM_CLANG_VERSION           6.14)
+set(MIN_ARM_CLANG_VERSION           6.15)
 
 # Skip compiler test execution
 set(CMAKE_C_COMPILER_WORKS          1)