docs: add ovmf arg to runqemu command

Adding ovmf to runqemu commands since we switched to GRUB+EFI as boot solution. 

Without this argument it does not boot properly and remains stuck in "Booting from Hard Disk..."

Signed-off-by: Francesco Pham <francesco.pham@huawei.com>

docs/build-flavours/linux-flavour.rst

@@ -38,7 +38,7 @@ You can test the image built for the qemux86-64 target by issuing:
 
 .. code-block:: console
 
-    $ runqemu qemux86-64 oniro-image-base wic
+    $ runqemu qemux86-64 oniro-image-base wic ovmf
 
 After successful bootup, you will be dropped into a login shell:
 

docs/hardware-support/virtual-boards/qemux86-64.rst

@@ -48,4 +48,4 @@ Once the image is done, you can run the Qemu using the provided script wrapper:
 
 .. code-block:: console
 
-   $ MACHINE=qemux86-64 runqemu oniro-image-base wic
+   $ MACHINE=qemux86-64 runqemu oniro-image-base wic ovmf

docs/hardware-support/virtual-boards/qemux86.rst

@@ -48,4 +48,4 @@ Once the image is done, you can run the Qemu using the provided script wrapper:
 
 .. code-block:: console
 
-   $ MACHINE=qemux86 runqemu oniro-image-base wic
+   $ MACHINE=qemux86 runqemu oniro-image-base wic ovmf

docs/oniro-quick-build.rst

@@ -84,7 +84,7 @@ Once the image is built, you can run a Qemu X86-64 instance using the provided s
 
 .. code-block:: console
 
-      $ MACHINE=qemux86-64 runqemu oniro-image-base wic
+      $ MACHINE=qemux86-64 runqemu oniro-image-base wic ovmf
 
 If the host has a VT-capable CPU, you can pass the ``kvm`` argument for better
 performance. Check ``runqemu``'s help message for all available arguments.

flavours/linux/conf-notes.txt

@@ -25,5 +25,5 @@ or via command line, e.g.:
 
 You can also run generated qemu images with a command:
 
-    $ runqemu qemux86-64 qemuparams="-nographic" oniro-image-base wic
+    $ runqemu qemux86-64 qemuparams="-nographic" oniro-image-base wic ovmf