clk: add non CONFIG_HAVE_CLK routines

clk: add non CONFIG_HAVE_CLK routines

Many drivers are shared between architectures that may or may not have
HAVE_CLK selected for them.  To remove compilation errors for them we
enclose clk_*() calls in these drivers within #ifdef CONFIG_HAVE_CLK,
#endif.

This patch removes the need of these CONFIG_HAVE_CLK statements, by
introducing dummy routines when HAVE_CLK is not selected by platforms.
So, definition of these routines will always be available.  These calls
will return error for platforms that don't select HAVE_CLK.

Signed-off-by: Viresh Kumar <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jeff Garzik <[email protected]>
Cc: Andrew Lunn <[email protected]>
Cc: Bhupesh Sharma <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Russell King <[email protected]>
Cc: Mike Turquette <[email protected]>
Cc: Sergei Shtylyov <[email protected]>
Cc: viresh kumar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>