Add support for TRGO2 trigger that can be found on STM32F7.
Add additional master modes supported by TRGO2.
Register additional "tim[1/8]_trgo2" triggers for timer1 & timer8.
Detect TRGO2 timer capability (master mode selection 2).
Signed-off-by: NFabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>