Add Cory Snider (corhere) as maintainer

Cory has actively participated in the project for many months, assisted in several
security advisories, code review, and triage, and (in short) already acted a
maintainer for some time (thank you!).

I nominated Cory as a maintainer per e-mail, and we reached quorum, so opening
this pull request to (should he choose to accept it) be added as a maintainer.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

MAINTAINERS

@@ -27,6 +27,7 @@
 			"akihirosuda",
 			"anusha",
 			"coolljt0725",
+			"corhere",
 			"cpuguy83",
 			"estesp",
 			"johnstep",
@@ -62,7 +63,6 @@
 			"alexellis",
 			"andrewhsu",
 			"bsousaa",
-			"corhere",
 			"fntlnz",
 			"gianarb",
 			"ndeloof",