treewide: Convert macro and uses of __section(foo) to __section("foo")

This commit does the same thing as Linux commit 33def8498fdd.

Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.

Remove the quote operator # from compiler_attributes.h __section macro.

Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

board/broadcom/bcmstb/bcmstb.c

@@ -22,7 +22,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define BCMSTB_DATA_SECTION __attribute__((section(".data")))
+#define BCMSTB_DATA_SECTION __section(".data")
 
 struct bcmstb_boot_parameters bcmstb_boot_parameters BCMSTB_DATA_SECTION;