arm/scp-firmware: enable verbose builds

We want compile logs to be useful, so enable verbose logs to show what
commands are being invoked.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm/recipes-bsp/scp-firmware/scp-firmware_2.10.0.bb

@@ -64,7 +64,7 @@ do_configure[cleandirs] += "${B}"
 do_compile() {
     for FW in ${FW_TARGETS}; do
         for TYPE in ${FW_INSTALL}; do
-            cmake --build ${B}/${TYPE}/${FW} --target all
+            VERBOSE=1 cmake --build ${B}/${TYPE}/${FW} --target all
         done
     done
 }