efi_loader: fix EFI_ENTRY point on get_active_pcr_banks

efi_tcg2_get_active_pcr_banks doesn't immediately call the
EFI_ENTRY() wrapper once it enters the function. Move the call a
few lines above to cover the error cases properly as well.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/lib/efi_loader/efi_tcg2.c b/lib/efi_loader/efi_tcg2.c
index 7b7926a..626df12 100644
--- a/lib/efi_loader/efi_tcg2.c
+++ b/lib/efi_loader/efi_tcg2.c
@@ -1211,12 +1211,13 @@
 {
 	efi_status_t ret;
 
+	EFI_ENTRY("%p, %p", this, active_pcr_banks);
+
 	if (!this || !active_pcr_banks) {
 		ret = EFI_INVALID_PARAMETER;
 		goto out;
 	}
 
-	EFI_ENTRY("%p, %p", this, active_pcr_banks);
 	ret = __get_active_pcr_banks(active_pcr_banks);
 
 out: