power: pm8921-charger: enable DCIN_VALID_IRQ as wake irq
power: pm8921-charger: enable DCIN_VALID_IRQ as wake irq

When the device is in suspend the DCIN_VALID_IRQ is not
used as a wake up interrupt.

Fix this by configuring the DCIN_VALID_IRQ as a wake up
interrupt.

CRs-Fixed: 389524
Change-Id: If3c5f00f4b75d03838ee556235697369fd2e47dd
Signed-off-by: David Keitel <bd5c00b7233f7e9d1df99d90a21c081aa6291657@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas