scripts: Clarify "help" info for yocto-bsp and yocto-kernel

Tweak the help info for both "yocto-bsp" and "yocto-kernel" to
emphasize that those are the *complete* lists of commands, not just
the most commonly used ones.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>

scripts/lib/bsp/help.py

@@ -83,7 +83,7 @@ yocto_bsp_usage = """
 
  usage: yocto-bsp [--version] [--help] COMMAND [ARGS]
 
- The most commonly used 'yocto-bsp' commands are:
+ Current 'yocto-bsp' commands are:
     create            Create a new Yocto BSP
     list              List available values for options and BSP properties
 
@@ -336,7 +336,7 @@ yocto_kernel_usage = """
 
  usage: yocto-kernel [--version] [--help] COMMAND [ARGS]
 
- The most commonly used 'yocto-kernel' commands are:
+ Current 'yocto-kernel' commands are:
    config list       List the modifiable set of bare kernel config options for a BSP
    config add        Add or modify bare kernel config options for a BSP
    config rm         Remove bare kernel config options from a BSP