Revert "[nrf noup] hostap: Avoid double-definition of base64 APIs"

nrf-squash! [nrf noup] hostap: Avoid double-definition of base64 AP

This reverts commit 4bbe53c.

The file definitions have been modified to include "hostap" namespace,
so, this file is must for build.

Signed-off-by: Chaitanya Tata <[email protected]>

Author: krish2718

modules/hostap/CMakeLists.txt

@@ -106,6 +106,7 @@ zephyr_library_sources(
 	${HOSTAP_SRC_BASE}/drivers/driver_common.c
 	${HOSTAP_SRC_BASE}/drivers/drivers.c
 	${HOSTAP_SRC_BASE}/utils/crc32.c
+	${HOSTAP_SRC_BASE}/utils/base64.c
 	${HOSTAP_SRC_BASE}/utils/common.c
 	${HOSTAP_SRC_BASE}/utils/wpabuf.c
 	${HOSTAP_SRC_BASE}/utils/bitfield.c