[9610] wlbt: SMAPPER. Check DMA addr alignment

[9610] wlbt: SMAPPER. Check DMA addr alignment

Since SMAPPER bank entry base address forces alignment (i.e. 2048
octets), hip4_smapper alloc should validate the dma buffer (phys
address) before setting the entry.

Usually skb/dma allocation will 'guarantee' 4k alignment unless
SLUB/SLAB debug is enabled.

Extended the smapper api to get the aligment from platform device
virtual implementation

Change-Id: Ic03f952d029efad7c60281d33d6915470072a3b5
SCSC-Bug-Id: SSB-40382
Signed-off-by: Albert Cano <a.canocamps@samsung.com>