efi_loader: Fix Kconfig for EFI_TCG2 protocol

EFI_TCG2 depends not only on TPMv2 but also on the underlying algorithms.
So select the missing SHA1, SHA256, SHA384 and SHA512 we currently support

Reported-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Add 'default y'.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index 0b99d7c..c259abe 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -300,7 +300,13 @@
 
 config EFI_TCG2_PROTOCOL
 	bool "EFI_TCG2_PROTOCOL support"
+	default y
 	depends on TPM_V2
+	select SHA1
+	select SHA256
+	select SHA512_ALGO
+	select SHA384
+	select SHA512
 	help
 	  Provide a EFI_TCG2_PROTOCOL implementation using the TPM hardware
 	  of the platform.