delay: timeout detection support
Introduce timeout_init_us/timeout_elapsed() delay tracking with CNTPCT.

timeout_init_us(some_timeout_us); returns a reference to detect
timeout for the provided microsecond delay value from current time.

timeout_elapsed(reference) return true/false whether the reference
timeout is elapsed.

Cherry picked from OP-TEE implementation [1].
  [1] commit 33d30a74502b ("core: timeout detection support")

Minor:
- Remove stm32mp platform duplicated implementation.
- Add new include in marvell ble.mk

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Change-Id: Iaef6d43c11a2e6992fb48efdc674a0552755ad9c
1 parent cf9319f commit 0711ee5cbc5645b55de1a751bd52dc8ce02ae037
@Lionel Debieve Lionel Debieve authored on 24 Sep 2019
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include/drivers/delay_timer.h
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plat/marvell/a8k/common/ble/ble.mk
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plat/st/common/include/stm32mp_common.h