drivers: intc: esp32: fix non-IRAM mask usage in interrupt disable

Fix the non-IRAM interrupt disable routine to use non_iram_int_mask[cpu]
directly instead of its bitwise inverse. The previous implementation used
the wrong mask and could affect unrelated interrupts. This change ensures
that only intended non-IRAM interrupts are disabled and restored.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>