arch/arm/src/armv8-m/up_exceptions.S : Fix build warning
arch/arm/src/armv8-m/up_exceptions.S : Fix build warning

armv8-m/up_exception.S:214:7: warning: "CONFIG_ARCH_HIPRI_INTERRUPT" is not defined [-Wundef]
 #elif CONFIG_ARCH_HIPRI_INTERRUPT
       ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: jeongchanKim <dd29dda359f9c9995ad03eb5d0e774929bcceb5c@samsung.com>

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