modules: Kconfig.simplelink: Remove POSIX_API, use fine-grained opts

PR #18780 introduces a way to decouple pthread support from the general
CONFIG_POSIX_API global switch. This commit modifies the build of
SimpleLink components to take advantage of it, since SimpleLink
libraries only require pthread, sem, clock, and sleep support, not
entire POSIX API.

This fixes the build errors in the http_get sample introduced
by the merge of #18736. As such, this patch also removes
cc3220sf_launchxl exclude from sample.yaml of that sample.

Signed-off-by: Vincent Wan <[email protected]>
Signed-off-by: Paul Sokolovsky <[email protected]>

Author: vanti

modules/Kconfig.simplelink

@@ -13,8 +13,8 @@ config SIMPLELINK_HOST_DRIVER
 	depends on MULTITHREADING
 	select NEWLIB_LIBC
 	select ERRNO
-        select POSIX_API
         select PTHREAD_IPC
+	select POSIX_CLOCK
 	help
 	  Build the SimpleLink host driver
 

samples/net/sockets/http_get/sample.yaml

@@ -13,7 +13,6 @@ tests:
       - CONFIG_NET_SOCKETS_POSIX_NAMES=y
     # Forcibly defines CONFIG_POSIX_API, which is incompatible with
     # CONFIG_NET_SOCKETS_POSIX_NAMES.
-    platform_exclude: cc3220sf_launchxl
   sample.net.sockets.http_get.posix:
     filter: and not CONFIG_NET_SOCKETS_OFFLOAD
     extra_configs: