px30: bl31: update version to v1.12

Build from ATF commit:
    beb0831 plat: px30: support cluster idle
update feature:
    beb0831 plat: px30: support cluster idle
    4654e39 plat: rockchip: support bl32/bl33 fixup by platform
    1e2e0a8 px30: enable CONFIG_PLAT_WARMBOOT_ADDR_NOT_ALIGN
    9f2cf03 rockchip: common: make warmboot address 64 align optional
    eff4387 plat: px30: dfs: close DDR standby during change DDR frequency
    a933e5a plat: px30: ddr: fix ddr4 tCCD_L set error
    2e3014a plat: px30: dfs: add ddr_update_lowpower
    65aa5ce rockchip: fix bugs of disable uart fiq

Change-Id: Iba22bbe055cb3f50f4a43af8048bca4311919424
Signed-off-by: XiaoDong Huang <derrick.huang@rock-chips.com>

RKTRUST/PX30TRUST.ini

@@ -5,7 +5,7 @@ MINOR=0
 SEC=0
 [BL31_OPTION]
 SEC=1
-PATH=bin/rk33/px30_bl31_v1.11.elf
+PATH=bin/rk33/px30_bl31_v1.12.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=1