RFR (S): 8153039: Command line processing should use mtCommand or mtArguments rather than mtInternal for NMT

[Gerard Ziemski]

hi all,

Please review this small cleanup fix, which introduces a new NMT (Native Memory Tracking) flag (ie. mtArguments) and replaces any existing, but incorrect, usages of mtInternal in argument processing related code with that new flag.
		
bug:		https://bugs.openjdk.java.net/browse/JDK-8153039
webrev:	http://cr.openjdk.java.net/~gziemski/8153039_rev1

Passes local “hotspot/test/runtime/NMT” jtreg tests.


cheers