arm/optee-os: deploy tee.elf for u-boot

Integration of OP-TEE in the u-boot image is done with `TEE=tee.elf`,
so this build artifact must be exported.

U-boot integration can now be done in a BSP layer with something like
this in `u-boot_%.bbappend`:

 # OP-TEE, dependent on "optee" DISTRO_FEATURES

 OPTEE_OEMAKE ?= " TEE=${DEPLOY_DIR_IMAGE}/optee/tee.elf"

 EXTRA_OEMAKE_append = " ${PACKAGECONFIG_CONFARGS}"
 PACKAGECONFIG[optee] = "${OPTEE_OEMAKE},,optee-os"
 PACKAGECONFIG_append = " ${@bb.utils.filter('DISTRO_FEATURES', 'optee', d)}"

Signed-off-by: Yann Dirson <yann@blade-group.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm/recipes-security/optee/optee-os.inc

@@ -45,7 +45,7 @@ do_compile[cleandirs] = "${B}"
 do_install() {
     #install core in firmware
     install -d ${D}${nonarch_base_libdir}/firmware/
-    install -m 644 ${B}/core/*.bin ${D}${nonarch_base_libdir}/firmware/
+    install -m 644 ${B}/core/*.bin ${B}/core/tee.elf ${D}${nonarch_base_libdir}/firmware/
 
     #install TA devkit
     install -d ${D}${includedir}/optee/export-user_ta/
@@ -68,6 +68,8 @@ SYSROOT_DIRS += "${nonarch_base_libdir}/firmware"
 FILES_${PN} = "${nonarch_base_libdir}/firmware/"
 FILES_${PN}-dev = "${includedir}/optee/"
 
+# note: "textrel" is not triggered on all archs
+INSANE_SKIP_${PN} = "textrel"
 INSANE_SKIP_${PN}-dev = "staticdev"
 
 INHIBIT_PACKAGE_STRIP = "1"