- Fix reference to bl2_el3_early_platform_setup()
- Remove references to removed build options.

Change-Id: I9733bec64fc28db15716ddf481c05bdc30700b4a
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>