power: da9052-battery: Convert to the new da9052 interrupt functions

Convert to the new da9052 interrupt functions, so that we can get rid of
irq_base references.

Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>