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>

arch/riscv/cpu/cpu.c

@@ -17,10 +17,10 @@
  * before the bss section is available.
  */
 #ifdef CONFIG_OF_PRIOR_STAGE
-phys_addr_t prior_stage_fdt_address __attribute__((section(".data")));
+phys_addr_t prior_stage_fdt_address __section(".data");
 #endif
 #ifndef CONFIG_XIP
-u32 hart_lottery __attribute__((section(".data"))) = 0;
+u32 hart_lottery __section(".data") = 0;
 
 /*
  * The main hart running U-Boot has acquired available_harts_lock until it has