toolchain: common: Define PERFOPT_ALIGN for OpenRISC

PERFOPT_ALIGN is defined as ".balign 4" because .balign is available in the
or1k GNU assembler.

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

Author: jhol

include/zephyr/toolchain/common.h

@@ -87,7 +87,8 @@
     #define PERFOPT_ALIGN .align  4
 
   #elif defined(CONFIG_NIOS2) || defined(CONFIG_RISCV) || \
-	  defined(CONFIG_XTENSA) || defined(CONFIG_MIPS)
+	  defined(CONFIG_XTENSA) || defined(CONFIG_MIPS) || \
+	  defined(CONFIG_OPENRISC)
     #define PERFOPT_ALIGN .balign 4
 
   #elif defined(CONFIG_ARCH_POSIX)