treewide: replace with error() with pr_err()

U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/tpm_test.c b/cmd/tpm_test.c
index 3306405..37ad2ff 100644
--- a/cmd/tpm_test.c
+++ b/cmd/tpm_test.c
@@ -303,12 +303,12 @@
 	index_0 += 1;
 	if (tpm_nv_write_value(INDEX0, (uint8_t *)&index_0, sizeof(index_0) !=
 		TPM_SUCCESS)) {
-		error("\tcould not write index 0\n");
+		pr_err("\tcould not write index 0\n");
 	}
 	tpm_nv_write_value_lock(INDEX0);
 	if (tpm_nv_write_value(INDEX0, (uint8_t *)&index_0, sizeof(index_0)) ==
 			TPM_SUCCESS)
-		error("\tindex 0 is not locked\n");
+		pr_err("\tindex 0 is not locked\n");
 
 	printf("\tdone\n");
 	return 0;
@@ -471,7 +471,7 @@
 		case TPM_MAXNVWRITES:
 			assert(i >= TPM_MAX_NV_WRITES_NOOWNER);
 		default:
-			error("\tunexpected error code %d (0x%x)\n",
+			pr_err("\tunexpected error code %d (0x%x)\n",
 			      result, result);
 		}
 	}