tests: drivers: spi: loopback: boards: adjust scaling for stm32 boards

Adjust transfer duration scaling config for STM32 boards

Signed-off-by: Guillaume Gautier <guillaume.gautier-ext@st.com>
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_f207zg.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_f207zg.conf
new file mode 100644
index 0000000..f4ce2e4
--- /dev/null
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_f207zg.conf
@@ -0,0 +1 @@
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=10
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_f746zg.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_f746zg.conf
index 72f6473..6269f48 100644
--- a/tests/drivers/spi/spi_loopback/boards/nucleo_f746zg.conf
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_f746zg.conf
@@ -1,2 +1,2 @@
 CONFIG_NOCACHE_MEMORY=y
-CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=10
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=12
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_wb55rg.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_wb55rg.conf
index a527ab8..8d71bd0 100644
--- a/tests/drivers/spi/spi_loopback/boards/nucleo_wb55rg.conf
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_wb55rg.conf
@@ -1 +1 @@
-CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=22
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=28
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_wba55cg.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_wba55cg.conf
index 1753e2d..f69eaee 100644
--- a/tests/drivers/spi/spi_loopback/boards/nucleo_wba55cg.conf
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_wba55cg.conf
@@ -1 +1 @@
-CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=50
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=58
diff --git a/tests/drivers/spi/spi_loopback/boards/nucleo_wl55jc.conf b/tests/drivers/spi/spi_loopback/boards/nucleo_wl55jc.conf
index 7259243..1e6ce50 100644
--- a/tests/drivers/spi/spi_loopback/boards/nucleo_wl55jc.conf
+++ b/tests/drivers/spi/spi_loopback/boards/nucleo_wl55jc.conf
@@ -1 +1 @@
-CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=15
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=20
diff --git a/tests/drivers/spi/spi_loopback/boards/stm32f3_disco.conf b/tests/drivers/spi/spi_loopback/boards/stm32f3_disco.conf
index 016bb00..3e8be1f 100644
--- a/tests/drivers/spi/spi_loopback/boards/stm32f3_disco.conf
+++ b/tests/drivers/spi/spi_loopback/boards/stm32f3_disco.conf
@@ -1,2 +1,2 @@
 CONFIG_SPI_LOOPBACK_MODE_LOOP=y
-CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=15
+CONFIG_SPI_IDEAL_TRANSFER_DURATION_SCALING=18