toolchain: gcc: Added symbol attributes for OpenRISC

A common set of macros: GTEXT(), GDATA(), WTEXT() and WDATA() is defined
for Arm, Arm66, MIPS, Nios II, RISC-V and Xtensa. This patch adds OpenRISC
to this set.

Signed-off-by: Joel Holdsworth <[email protected]>

Author: jhol

include/zephyr/toolchain/gcc.h

@@ -366,7 +366,7 @@ do {                                                                    \
 
 #if defined(CONFIG_ARM) || defined(CONFIG_NIOS2) || defined(CONFIG_RISCV) \
 	|| defined(CONFIG_XTENSA) || defined(CONFIG_ARM64) \
-	|| defined(CONFIG_MIPS)
+	|| defined(CONFIG_MIPS) || defined(CONFIG_OPENRISC)
 #define GTEXT(sym) .global sym; .type sym, %function
 #define GDATA(sym) .global sym; .type sym, %object
 #define WTEXT(sym) .weak sym; .type sym, %function