Add OPENJCEPLUS_SUPPORT for OpenJ9 #239

Job	Run time
Select platforms	1s
linux-x64-hs-optimized / build (debug)	2m 10s
linux-x64-hs-minimal / build (debug)	1m 36s
linux-x64 / build (debug)	1m 33s
linux-x64-hs-nopch / build (debug)	1m 32s
linux-x64 / build (release)	1m 32s
linux-x86 / build (debug)	2m 31s
linux-x86 / build (release)	1m 43s
linux-x64-hs-zero / build (debug)	1m 31s
macos-aarch64 / build (debug)	3m 53s
macos-x64 / build (debug)	2m 53s
macos-aarch64 / build (release)	2m 51s
macos-x64 / build (release)	2m 51s
windows-aarch64 / build (debug)	4m 24s
windows-x64 / build (debug)	3m 56s
windows-aarch64 / build (release)	4m 2s
windows-x64 / build (release)	4m 28s
linux-cross-compile	0s
linux-x64	0s
linux-x86	0s
macos-x64	0s
windows-x64	0s
Remove bundle artifacts	3s
	43m 30s

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