libpayload/storage: Enable all AHCI controllers by default

Since the list of tested controllers is not actively maintained, enable
all AHCI controllers by default. Also, improve the readability of its
help text by adding a comma to it.

Change-Id: If30f58f8380ab599f8985e85c64510dc88e96268
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46533
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/payloads/libpayload/drivers/storage/Kconfig b/payloads/libpayload/drivers/storage/Kconfig
index fea52c8..8dffd3b 100644
--- a/payloads/libpayload/drivers/storage/Kconfig
+++ b/payloads/libpayload/drivers/storage/Kconfig
@@ -45,7 +45,7 @@
 config STORAGE_AHCI_ONLY_TESTED
 	bool "Only enable tested controllers"
 	depends on STORAGE_AHCI
-	default y
+	default n
 	help
-	  If this option is selected only AHCI controllers which are known
+	  If this option is selected, only AHCI controllers which are known
 	  to work will be used.