loader: fix missing pulseIn() implementation

pulseIn() and friends rely on being able to query GPIO pin direction,
which was not enabled in the Zephyr configuration.

Signed-off-by: Luca Burelli <[email protected]>

Author: pillo79

loader/prj.conf

@@ -29,6 +29,7 @@ CONFIG_LLEXT_EDK=y
 CONFIG_LLEXT_EDK_FORMAT_TAR_ZSTD=y
 
 CONFIG_GPIO=y
+CONFIG_GPIO_GET_DIRECTION=y
 CONFIG_PINCTRL=y
 CONFIG_I2C=y
 CONFIG_SPI=y
@@ -50,4 +51,4 @@ CONFIG_MAIN_THREAD_PRIORITY=14
 CONFIG_INPUT_THREAD_PRIORITY_OVERRIDE=y
 CONFIG_INPUT_THREAD_PRIORITY=0
 
-CONFIG_EVENTS=y
+CONFIG_EVENTS=y