base: Kernel switch asm fix

This patch fixes the kernel/module switch code.
Need to reserve 16 bytes for global __kernel_stack storage.
Put __kernel_stack in .bss since its uninitialized data.
Replace stqr/lqr pair with stqa/lqa.

Signed-off-by: Yuji Mano <yuji.mano@am.sony.com>
Acked-by: Kazunori Asayama <asayama@sm.sony.co.jp>
1 file changed