mbedtls: set up /usr/bin/hello as alternative

As mbedtls installs this rather generically-named /usr/bin/hello binary,
it conflicts with the one provided by lmbench, hence set it up as an
alternative to avoid conflicts when both are installed to rootfs or SDK.

Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-networking/recipes-connectivity/mbedtls/mbedtls_2.28.2.bb

@@ -26,7 +26,7 @@ S = "${WORKDIR}/git"
 SRCREV = "89f040a5c938985c5f30728baed21e49d0846a53"
 SRC_URI = "git://github.com/ARMmbed/mbedtls.git;protocol=https;branch=mbedtls-2.28"
 
-inherit cmake
+inherit cmake update-alternatives
 
 PACKAGECONFIG ??= "shared-libs programs"
 PACKAGECONFIG[shared-libs] = "-DUSE_SHARED_MBEDTLS_LIBRARY=ON,-DUSE_SHARED_MBEDTLS_LIBRARY=OFF"
@@ -47,6 +47,9 @@ RPROVIDES:${PN} = "polarssl"
 PACKAGES =+ "${PN}-programs"
 FILES:${PN}-programs = "${bindir}/"
 
+ALTERNATIVE:${PN}-programs = "hello"
+ALTERNATIVE_LINK_NAME[hello] = "${bindir}/hello"
+
 BBCLASSEXTEND = "native nativesdk"
 
 CVE_PRODUCT = "mbed_tls"