dm: core: Require users of devres to include the header

At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
diff --git a/lib/crypto/asymmetric_type.c b/lib/crypto/asymmetric_type.c
index e04666c..7aa5509 100644
--- a/lib/crypto/asymmetric_type.c
+++ b/lib/crypto/asymmetric_type.c
@@ -7,6 +7,7 @@
  * Written by David Howells (dhowells@redhat.com)
  */
 #ifndef __UBOOT__
+#include <dm/devres.h>
 #include <keys/asymmetric-subtype.h>
 #include <keys/asymmetric-parser.h>
 #endif
@@ -14,6 +15,7 @@
 #ifdef __UBOOT__
 #include <linux/compat.h>
 #include <linux/ctype.h>
+#include <linux/err.h>
 #include <linux/string.h>
 #else
 #include <linux/seq_file.h>
diff --git a/lib/crypto/pkcs7_parser.c b/lib/crypto/pkcs7_parser.c
index bf9e7e8..f5dda11 100644
--- a/lib/crypto/pkcs7_parser.c
+++ b/lib/crypto/pkcs7_parser.c
@@ -7,6 +7,7 @@
 
 #define pr_fmt(fmt) "PKCS7: "fmt
 #ifdef __UBOOT__
+#include <dm/devres.h>
 #include <linux/bitops.h>
 #include <linux/compat.h>
 #endif
diff --git a/lib/crypto/public_key.c b/lib/crypto/public_key.c
index 6343774..8b48217 100644
--- a/lib/crypto/public_key.c
+++ b/lib/crypto/public_key.c
@@ -9,7 +9,9 @@
 
 #define pr_fmt(fmt) "PKEY: "fmt
 #ifdef __UBOOT__
+#include <dm/devres.h>
 #include <linux/compat.h>
+#include <linux/err.h>
 #else
 #include <linux/module.h>
 #include <linux/export.h>
diff --git a/lib/crypto/x509_cert_parser.c b/lib/crypto/x509_cert_parser.c
index e6d2a42..4e41cff 100644
--- a/lib/crypto/x509_cert_parser.c
+++ b/lib/crypto/x509_cert_parser.c
@@ -6,6 +6,7 @@
  */
 
 #define pr_fmt(fmt) "X.509: "fmt
+#include <dm/devres.h>
 #include <linux/kernel.h>
 #ifndef __UBOOT__
 #include <linux/export.h>
diff --git a/lib/crypto/x509_public_key.c b/lib/crypto/x509_public_key.c
index 04bdb67..676c0df 100644
--- a/lib/crypto/x509_public_key.c
+++ b/lib/crypto/x509_public_key.c
@@ -8,7 +8,9 @@
 #define pr_fmt(fmt) "X.509: "fmt
 #ifdef __UBOOT__
 #include <common.h>
+#include <dm/devres.h>
 #include <linux/compat.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #else
 #include <linux/module.h>