irqchip/gic-v5: Fix inversion of IRS_IDR0.virt flag

It appears that a !! became ! during a cleanup, resulting in inverted
logic when detecting if a host GICv5 implementation is capable of
virtualization.

Re-add the missing !, fixing the behaviour.

Fixes: 3227c3a ("irqchip/gic-v5: Check if impl is virt capable")
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Link: https://patch.msgid.link/20260225083130.3378490-1-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

Author: Sticklyman1936

drivers/irqchip/irq-gic-v5-irs.c

@@ -744,7 +744,7 @@ static int __init gicv5_irs_init(struct device_node *node)
 	 */
 	if (list_empty(&irs_nodes)) {
 		idr = irs_readl_relaxed(irs_data, GICV5_IRS_IDR0);
-		gicv5_global_data.virt_capable = !FIELD_GET(GICV5_IRS_IDR0_VIRT, idr);
+		gicv5_global_data.virt_capable = !!FIELD_GET(GICV5_IRS_IDR0_VIRT, idr);
 
 		idr = irs_readl_relaxed(irs_data, GICV5_IRS_IDR1);
 		irs_setup_pri_bits(idr);