package/tpm2-abrmd: fix build without stack smashing protection (SSP)

The configuration environment setup that disables SSP if the toolchain
does not support it must be updated after the bump to version 2.0.3.

Fixes:
  http://autobuild.buildroot.net/results/bd9005eeb24678aa530179a80bbc99b2176f8559
  http://autobuild.buildroot.net/results/feff61dcb481a94f5f030117830984c5e09727ea

Signed-off-by: Carlos Santos <casantos@datacom.com.br>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/tpm2-abrmd/tpm2-abrmd.mk

@@ -13,7 +13,7 @@ TPM2_ABRMD_DEPENDENCIES = dbus libglib2 tpm2-tss host-pkgconf
 
 # configure.ac doesn't contain a link test, so it doesn't detect when
 # libssp is missing.
-TPM2_ABRMD_CONF_ENV = ax_cv_check_cflags___fstack_protector_all=$(if $(BR2_TOOLCHAIN_HAS_SSP),yes,no)
+TPM2_ABRMD_CONF_ENV = ax_cv_check_cflags___________Werror_______fstack_protector_all=$(if $(BR2_TOOLCHAIN_HAS_SSP),yes,no)
 
 TPM2_ABRMD_CONF_OPTS += \
 	--with-systemdsystemunitdir=$(if $(BR2_INIT_SYSTEMD),/usr/lib/systemd/system,no) \