rk322xh: bl31: update version to v1.49

Build from ATF commit:
5315ffb0a plat: rk322xh: dram: support ddr os_reg v2
update feature:
5315ffb0a plat: rk322xh: dram: support ddr os_reg v2

Signed-off-

rk322xh: bl31: update version to v1.49

Build from ATF commit:
5315ffb0a plat: rk322xh: dram: support ddr os_reg v2
update feature:
5315ffb0a plat: rk322xh: dram: support ddr os_reg v2

Signed-off-by: Zhihuan He <huan.he@rock-chips.com>
Change-Id: Ia76236f00e270b3abc418ad86e4905831c66224b

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