ARC: [arcompact] entry.S: Document preemption games for L2 intr
ARC: [arcompact] entry.S: Document preemption games for L2 intr

Signed-off-by: Vineet Gupta <af669d95a4c0de051445d4cafdbb2c5c4a2838be@synopsys.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs