tpl: Ensure all TPL symbols in Kconfig have some TPL dependency

Tighten up symbol dependencies in a number of places.  Ensure that a TPL
specific option has at least a direct dependency on TPL.  In places
where it's clear that we depend on something more specific, use that
dependency instead.

Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7cbfd6c..1ac43e9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -956,6 +956,7 @@
 
 config TPL_ACPI_GPE
 	bool "Support ACPI general-purpose events in TPL"
+	depends on TPL
 	help
 	  Enable a driver for ACPI GPEs to allow peripherals to send interrupts
 	  via ACPI to the OS. In U-Boot this is only used when U-Boot itself