ARM: dts: msm: SPI Modify SPI BAM physical memory size

SPI driver does not map all spi bam memory space.
When  spi driver attempts to read from a register
by adding offset to  base address, that
address exceeds  memory area thus  data
abort happen.

This patch add the correct  size for SPI BAM
memory in DT file to map all the registers thus
avoid data abort.

CRs-Fixed: 562031
Change-Id: Ibd69176c5b8c90a15141b621beb27f2655770797
Signed-off-by: Sana Venkat Raju <c_vsana@codeaurora.org>