tools/isl: update to 0.26

Changelog:
https://repo.or.cz/isl.git/blob/e58af07f91c94db81627fb801fa6f52c3a7201a8:/ChangeLog

Signed-off-by: Nick Hainke <[email protected]>

tools/isl/Makefile

@@ -7,11 +7,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=isl
-PKG_VERSION:=0.25
+PKG_VERSION:=0.26
 
 PKG_SOURCE_URL:=https://libisl.sourceforge.io/
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_HASH:=be7b210647ccadf90a2f0b000fca11a4d40546374a850db67adb32fad4b230d9
+PKG_HASH:=a0b5cb06d24f9fa9e77b55fabbe9a3c94a336190345c2555f9915bb38e976504
 
 HOST_BUILD_PARALLEL:=1