pru-software-support: bump to latest version 5.9.0

Update to the latest version of the PRU software support [1]. Compared
with v5.8.0, there aren't code or license changes, just some extra
release notes.

[1] https://git.ti.com/cgit/pru-software-support-package/pru-software-support-package

Signed-off-by: Ash Charles <ashcharles@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/pru-software-support/pru-software-support.hash

@@ -1,3 +1,3 @@
 # Locally-calculated hash
-sha256  e9256533a6901d31cd12b4ca1c1638b795d316a966967783a8d573e75a6f9d77 pru-software-support-package-v5.8.0.tar.gz
+sha256  4a6b1b2b8ca892c442fd7fce7ddbf6b74e0619def2bb19f3ad67c94720b7ca3a pru-software-support-package-v5.9.0.tar.gz
 sha256  62a2f56498cd1bac2d4ea6ea1c941affba1e4bb65bfdf2dcffd8e5079fa34399  PRU-Package-v6.1-Manifest.html

package/pru-software-support/pru-software-support.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PRU_SOFTWARE_SUPPORT_VERSION = 5.8.0
+PRU_SOFTWARE_SUPPORT_VERSION = 5.9.0
 PRU_SOFTWARE_SUPPORT_SITE = https://git.ti.com/cgit/pru-software-support-package/pru-software-support-package/snapshot
 PRU_SOFTWARE_SUPPORT_SOURCE = $(PRU_SOFTWARE_SUPPORT_NAME)-package-v$(PRU_SOFTWARE_SUPPORT_VERSION).tar.gz
 PRU_SOFTWARE_SUPPORT_LICENSE =  BSD-3-Clause, Public Domain