chore(pauth): remove redundant pauth_disable_el3() call

Both bl2_main and bl2_run_next_image call pauth_disable_el3. However,
bl2_main is the only caller of bl2_run_next_image so it doesn't need to
call it

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I91769b2994ad643d2259c211936dbac4ef010d25
2 files changed