release: Zephyr 4.2.0-rc2

Set version to v4.2.0-rc2.

Signed-off-by: Dan Kalowsky <[email protected]>
Signed-off-by: Daniel DeGrasse <[email protected]>

Author: danieldegrasse

VERSION

@@ -2,4 +2,4 @@ VERSION_MAJOR = 4
 VERSION_MINOR = 2
 PATCHLEVEL = 0
 VERSION_TWEAK = 0
-EXTRAVERSION = rc1
+EXTRAVERSION = rc2