Switch OTP related config from ARMCLANG to GNUARM for test

Current OTP related config for test in Open CI would come into code size issue.
Config MUSCA_B1_ARMCLANG_PSA_3_REG_Debug_OTP_BL2_NS has been disabled in CI.
Switch the config from ARMCLANG to GNUARM to have an OTP related config tested.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: Ie6f8864695ccc44e7fa0732b7cabc5a45c6df450
2 files changed