Missing dependencies break parallel fTPM builds #96
Description
It seems we need
--- a/Samples/ARM32-FirmwareTPM/optee_ta/fTPM/lib/wolf/sub.mk
+++ b/Samples/ARM32-FirmwareTPM/optee_ta/fTPM/lib/wolf/sub.mk
@@ -56,3 +56,5 @@ srcs-y += wolf_symlink/wolfcrypt/src/tfm.c
srcs-y += wolf_symlink/wolfcrypt/src/wolfmath.c
srcs-y += wolf_symlink/wolfcrypt/src/des3.c
srcs-y += wolf_symlink/wolfcrypt/src/random.c
+
+$(srcs-y): wolf_symlink
to fix sporadic build failures on larger build machines, see also https://groups.google.com/d/msgid/isar-users/424e2519-2dfa-5379-a16e-ca505e6135fe%40siemens.com.
This is more to help others as I can't open a PR before I figured out how to deal with https://opensource.microsoft.com/cla/ on the Siemens side (CLAs are complex to handle, and this process here is seems to be even more complex).