dts: arm: Fix Dual Timer IRQ config for v2m_beetle
dts: arm: Fix Dual Timer IRQ config for v2m_beetle

The dts.fixup for v2m_beetle contains a wrong setting for the IRQ fixup
for the Dual Timer IRQ.

This patch fixes the symbol included in the generated header.

Signed-off-by: Vincenzo Frascino <3ace7bb34570a19a202c4c73ce7a798ea734bba6@linaro.org>

explora26/zephyr,Vudentz/zephyr,galak/zephyr,ldts/zephyr,nashif/zephyr,ldts/zephyr,Vudentz/zephyr,ldts/zephyr,nashif/zephyr,finikorg/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,finikorg/zephyr,punitvara/zephyr,finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,explora26/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,finikorg/zephyr,nashif/zephyr,ldts/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,nashif/zephyr,nashif/zephyr,finikorg/zephyr,Vudentz/zephyr,punitvara/zephyr,galak/zephyr,punitvara/zephyr,explora26/zephyr,Vudentz/zephyr,galak/zephyr,GiulianoFranchetto/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr