spi: stm32-ospi: Remove CR_TCIE and CR_TEIE irq usage

spi: stm32-ospi: Remove CR_TCIE and CR_TEIE irq usage

Replace CR_TCIE and CR_TEIE irq usage by a read_poll_timeout_atomic() in
stm32_ospi_wait_cmd(). It will reduce the time waiting for TCF or TEF flags
to optimize throughput.

                                           before     after
average time spent in stm32_omi_wait_cmd:  5685 ns    923 ns

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://patch.msgid.link/20251208-upstream_qspi_ospi_updates-v2-3-62526c9467dc@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>