Merge remote-tracking branch 'tls/development' into development

Resolve conflicts by performing the following actions:
- Reject changes to ChangeLog, as Mbed Crypto doesn't have one
- Reject changes to tests/compat.sh, as Mbed Crypto doesn't have it
- Reject changes to programs/fuzz/onefile.c, as Mbed Crypto doesn't have
  it
- Resolve minor whitespace differences in library/ecdsa.c by taking the
  version from Mbed TLS upstream.

* origin/development:
  Honor MBEDTLS_CONFIG_FILE in fuzz tests
  Test that a shared library build produces a dynamically linked executable
  Test that the shared library build with CMake works
  Add a test of MBEDTLS_CONFIG_FILE
  Exclude DTLS 1.2 only with older OpenSSL
  Document the rationale for the armel build
  Switch armel build to -Os
  Add a build on ARMv5TE in ARM mode
  Add changelog entry for ARM assembly fix
  bn_mul.h: require at least ARMv6 to enable the ARM DSP code
  Adapt ChangeLog
  ECP restart: Don't calculate address of sub ctx if ctx is NULL

library/ecdsa.c

@@ -172,7 +172,7 @@ static void ecdsa_restart_det_free( mbedtls_ecdsa_restart_det_ctx *ctx )
 }
 #endif /* MBEDTLS_ECDSA_DETERMINISTIC */
 
-#define ECDSA_RS_ECP   ( rs_ctx == NULL ? NULL :  &rs_ctx->ecp )
+#define ECDSA_RS_ECP    ( rs_ctx == NULL ? NULL : &rs_ctx->ecp )
 
 /* Utility macro for checking and updating ops budget */
 #define ECDSA_BUDGET( ops )   \