tf-a-stm32mp: create symlinks on deploydir to TF-A and FIP binaries

These binaries are installed in subdirectories by default. The uuu
installer expects to find all binaries on the same folder where the script
is. By creating symlinks, the uuu installer can find all the binaries it
needs directly on the deploy folder.

NOTE: variables in 'for' clauses are intentionally without quotes to skip
whitespaces in them.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>

meta-digi-arm/dynamic-layers/stm-st-stm32mp/recipes-bsp/trusted-firmware-a/tf-a-stm32mp_%.bbappend

@@ -52,6 +52,39 @@ python set_fip_sign_key() {
                 d.setVar('FIP_SIGN_KEY_PASS', p[i])
 }
 
+do_deploy:append() {
+	unset i
+	for config in ${TF_A_CONFIG}; do
+		i=$(expr $i + 1)
+		# Initialize devicetree list and tf-a basename
+		dt_config=$(echo ${TF_A_DEVICETREE} | cut -d',' -f${i})
+		tfa_basename=$(echo ${TF_A_BINARIES} | cut -d',' -f${i})
+		for dt in ${dt_config}; do
+			TF_A_FILENAME="${tfa_basename}-${dt}-${config}.${TF_A_SUFFIX}"
+			if [ -f "${DEPLOYDIR}/arm-trusted-firmware/${TF_A_FILENAME}" ]; then
+				cd "${DEPLOYDIR}"
+				# symlink TF-A
+				ln -s "arm-trusted-firmware/${TF_A_FILENAME}" "${DEPLOYDIR}/"
+			fi
+		done
+	done
+
+	unset i
+	for config in ${FIP_CONFIG}; do
+		i="$(expr ${i} + 1)"
+		dt_config="$(echo ${FIP_DEVICETREE} | cut -d',' -f${i})"
+		for dt in ${dt_config}; do
+			FIP_FILENAME="${FIP_BASENAME}-${dt}-${config}.${FIP_SUFFIX}"
+			echo "${FIP_FILENAME}"
+			if [ -f "${DEPLOYDIR}/fip/${FIP_FILENAME}" ]; then
+				cd "${DEPLOYDIR}"
+				# symlink FIP
+				ln -s "fip/${FIP_FILENAME}" "${DEPLOYDIR}/"
+			fi
+		done
+	done
+}
+
 # Sign TF-A image
 do_deploy[postfuncs] += "${@oe.utils.conditional('TRUSTFENCE_SIGN', '1', 'tfa_sign', '', d)}"
 tfa_sign() {