rk3308 aarch64/32: bl31: update version to v2.23

Build from ATF commit:
	2f4c436b3 plat: rk3308: dram: ddr_get_rate() supports RK3308B-S

update feature:
	2f4c436b3 plat: rk3308: dram: ddr_get_rate() supports RK3308B-S
	47c68bda0 plat: rk3308: lock the remap bit
	b6e7fb930 plat: rk3308: update comments for pwm regulator voltage
	6f8a10510 plat: rk3308: enable detect-grf clk for usb wakeup
	2e2b83b71 plat: rk3308: dump more register for debug
	61b65b94d plat: rk3308: add more comments
	7b2259b1f plat: rk3308: correct sram secure size

Signed-off-by: Wesley Yao <wesley.yao@rock-chips.com>
Change-Id: I06509fe1f17bea09520775fb4765a54b55e63b89

RKTRUST/RK3308AARCH32TRUST.ini

@@ -5,7 +5,7 @@ MINOR=0
 SEC=0
 [BL31_OPTION]
 SEC=1
-PATH=bin/rk33/rk3308_bl31_aarch32_v2.22.elf
+PATH=bin/rk33/rk3308_bl31_aarch32_v2.23.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=0

RKTRUST/RK3308TRUST.ini

@@ -5,7 +5,7 @@ MINOR=0
 SEC=0
 [BL31_OPTION]
 SEC=1
-PATH=bin/rk33/rk3308_bl31_v2.22.elf
+PATH=bin/rk33/rk3308_bl31_v2.23.elf
 ADDR=0x00010000
 [BL32_OPTION]
 SEC=0