package/rtai: bump to version 5.3

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/rtai/rtai.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256 13669da744a0ba411bdb8e47fa47b6e19171646ae42c8dbb2735d12e555fb1a3 rtai-4.0.1.tar.bz2
+sha256  57acd3ad46cc8f1e01dc21089a24587c59e7328cbac06abb62bb0152de0b9df7  rtai-5.3.tar.bz2

package/rtai/rtai.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RTAI_VERSION = 4.0.1
+RTAI_VERSION = 5.3
 RTAI_SOURCE = rtai-$(RTAI_VERSION).tar.bz2
 RTAI_SITE = https://www.rtai.org/userfiles/downloads/RTAI
 RTAI_INSTALL_STAGING = YES