fastd: disable GMAC-based methods by default

The UMAC-based methods provide higher performance than GMAC and aren't
suspectible to timing attacks when implemented in software (which is
always the case on OpenWrt, as OpenSSL support is disabled). Disable
GMAC by default to save a few KiB.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

net/fastd/Config.in

@@ -8,7 +8,6 @@ config FASTD_ENABLE_METHOD_CIPHER_TEST
 config FASTD_ENABLE_METHOD_COMPOSED_GMAC
 	bool "Enable composed-gmac method provider"
 	select FASTD_ENABLE_MAC_GHASH
-	default y
 
 config FASTD_ENABLE_METHOD_COMPOSED_UMAC
 	bool "Enable composed-umac method provider"
@@ -18,7 +17,6 @@ config FASTD_ENABLE_METHOD_COMPOSED_UMAC
 config FASTD_ENABLE_METHOD_GENERIC_GMAC
 	bool "Enable generic-gmac method provider"
 	select FASTD_ENABLE_MAC_GHASH
-	default y
 
 config FASTD_ENABLE_METHOD_GENERIC_POLY1305
 	bool "Enable generic-poly1305 method provider"