Manta: NFC: Increase power-on delay to 300ms.

We've seen issues with NFCC firmware download
when only giving the controller 50ms after power-on -
usually the firmware download would hang after the
signature frame. Most likely some parts of the chip
are not fully up yet.

Increase to 300ms to fix.

Bug: 8700281
Change-Id: I0f1dfd25cf33aa1481ca39d28e431285d97e390f
1 file changed